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B2 noun #9 가장 일반적인 13분 분량

runtime

상위 9

연습하기 예시 노트와 팁 runtime 30초 만에

설명 runtime in your Level:

At the A1 level, 'runtime' is a word you might not use often, but you can understand it simply as 'the time something is working.' Imagine you have a toy car or a phone. The runtime is how long you can play with it before the battery dies. For a movie, it is how long the movie lasts from the start to the end. You can think of it as 'running time.' If a movie is 90 minutes long, its runtime is 90 minutes. It is a simple way to talk about the length of time an activity or a machine is active. You don't need to worry about computer code yet; just think about batteries and movies. For example, 'My phone has a long runtime' means the battery is very good and lasts all day. 'The movie runtime is two hours' means you will be in the cinema for two hours. It is a useful word for talking about how long things last.

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At the A2 level, you can start using 'runtime' to describe the duration of electronic devices and media more clearly. It is a noun that describes the period of time a program or a device is 'running' or 'on.' You might see this word when you buy a new vacuum cleaner or a laptop. The box might say '40-minute runtime.' This means you can use the vacuum for 40 minutes before you need to charge it again. In this context, it is very similar to 'battery life.' You can also use it for videos or songs. If you are talking to a friend about a YouTube video, you could say, 'The runtime is only five minutes, so you should watch it.' It helps you be more specific than just saying 'the time.' It specifically refers to the time something is active and performing its job.

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At the B1 level, you should begin to understand 'runtime' in a slightly more technical way, especially if you use computers for work. It refers to the phase when a computer program is actually working. When you click an icon and the app opens, that is the start of its runtime. If the app closes or crashes, the runtime ends. You might hear the phrase 'runtime error.' This is a mistake that happens while you are using the app, not while the app was being made. For example, if you are using a calculator app and it suddenly closes when you try to divide by zero, that is a runtime error. You can also use 'runtime' to discuss efficiency. If a task takes a long time to finish on your computer, you can say, 'The runtime for this process is too long.' This shows you understand that the computer is working hard during that period.

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At the B2 level, 'runtime' is a key term for professional communication in technical fields. You should distinguish between 'runtime' (when the program is executing) and 'compile-time' (when the program is being built). As a B2 learner, you should be comfortable using 'runtime' as both a noun and a modifier. For instance, you might talk about 'runtime environments' like Java or Node.js, which are the software layers that allow code to run. You should also be able to use it to describe performance: 'We need to optimize the code to reduce runtime latency.' In a business meeting, you might use it to discuss product specifications: 'The new drone has an impressive 30-minute runtime even in high winds.' At this level, you understand that 'runtime' implies a dynamic state where variables can change and the system must respond to user input.

At the C1 level, you use 'runtime' with precision in complex technical and architectural discussions. You understand 'runtime' not just as a duration, but as a specific state of a system where dynamic binding, memory allocation, and process scheduling occur. You might discuss 'runtime polymorphism,' where the specific method to be executed is determined while the program is running, rather than at compile-time. You can use the term to analyze system behavior: 'The runtime overhead of this security layer is negligible compared to the protection it provides.' You also understand the nuances of 'runtime libraries' and how they interact with the operating system. In a professional setting, you can fluently explain how runtime configurations allow a single software build to behave differently in various environments (development, staging, production) without needing to be recompiled.

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At the C2 level, your mastery of 'runtime' allows you to use it in the most sophisticated contexts of computer science, software engineering, and systems architecture. You can discuss the intricacies of 'runtime environments' versus 'virtual machines' and the implications of 'Just-In-Time (JIT) compilation' on runtime performance. You might analyze the 'runtime complexity' of algorithms using formal notation (like Big O) to predict how systems will scale under extreme loads. Your usage reflects an understanding of the entire lifecycle of a process, from instantiation to garbage collection. You can use the term metaphorically or in highly specialized fields, such as 'runtime verification' in safety-critical systems. Your communication is characterized by the ability to explain how runtime state—including the stack, heap, and register values—determines the outcome of complex computational logic.

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연습하기 예시 노트와 팁

runtime 30초 만에

Runtime is the active phase of a computer program's execution, occurring after compilation and lasting until the process terminates.
In the media industry, it refers to the total duration of a film, television episode, or musical recording from start to finish.
For hardware, it describes the amount of time a device can operate, usually on a single battery charge or fuel cycle.
Technical professionals use it to discuss performance, errors, and environments that support the execution of software code.

The term runtime is a fundamental concept in computer science and software development, referring specifically to the period during which a computer program is actively executing. To understand runtime, one must distinguish it from 'compile-time,' which is the phase where source code is translated into machine-readable instructions. Once that translation is complete and the user or system triggers the program to start, the runtime phase begins. During this window, the computer's central processing unit (CPU) is actively processing the program's logic, memory is being allocated and deallocated, and the software is interacting with the hardware and the user in real-time. It is the 'life' of the program in action.

Technical Context: In technical discussions, runtime often refers to the 'runtime environment,' which is the infrastructure (like a Virtual Machine or a set of libraries) that supports the execution of the code. For example, Java requires the Java Runtime Environment (JRE) to function.

The application encountered a critical error during runtime, causing it to terminate unexpectedly before the data could be saved.

Beyond the strictly technical definition, the word is also used in the entertainment industry, particularly in film and television, to describe the total duration of a piece of media. If a movie has a runtime of 120 minutes, that is the length of time it takes to play from the first frame to the final credits. However, in the context of SubLearn and language learning for professionals, the focus remains primarily on the computational aspect. Professionals use this word when debugging software, optimizing performance, or discussing system requirements. If a program is 'slow at runtime,' it means the user experience is sluggish while the app is open.

Operational Phase: The phase where the code is no longer just text on a screen but a living process in the computer's memory. This is when 'runtime errors' occur, which are bugs that only appear when the software is actually used.

We need to reduce the runtime of this script to ensure the server doesn't time out during heavy traffic.

Understanding runtime is crucial for anyone working in IT, data science, or digital project management. It represents the moment of truth for any piece of technology. You might have perfect code on paper, but if the runtime performance is poor, the product fails. In modern cloud computing, 'runtime' can also refer to the specific engine used to execute code, such as the Node.js runtime or the Python runtime. These environments provide the necessary tools for the code to speak to the operating system.

The new update significantly optimized the runtime efficiency, allowing the app to use 30% less battery.

Duration Usage: In non-coding contexts, it simply means 'how long something lasts.' For example, the runtime of a battery-powered drill refers to how long it can operate on a single charge.

The documentary has a runtime of ninety minutes, excluding the director's commentary.

The configuration settings are loaded at runtime rather than being hardcoded into the binary.

Using the word runtime correctly requires an understanding of whether you are referring to a duration or a technical phase. In technical writing, it often functions as an uncountable noun or a modifier for other nouns like 'error,' 'environment,' or 'library.' When you use it as a duration, it is usually a countable noun. For instance, 'The movie has a long runtime' is correct. In software, we say 'The error occurred at runtime,' where 'at runtime' acts as an adverbial phrase describing when the event took place.

As a Compound Noun: You can combine 'runtime' with other words to create specific technical terms. A 'runtime library' is a collection of software routines used by a compiler to manage programs written in a high-level language during their execution.

The software requires the latest C++ runtime components to be installed on the host machine.

When discussing efficiency, 'runtime' is often paired with verbs like 'reduce,' 'optimize,' 'minimize,' or 'calculate.' If you are a data scientist, you might say, 'We need to calculate the runtime of this algorithm to see if it scales with larger datasets.' This usage focuses on the temporal aspect—how many seconds or milliseconds the process takes. In contrast, a systems administrator might talk about 'runtime stability,' referring to how well a system stays running without crashing over a long period.

Describing Errors: A 'runtime error' is a specific type of bug. Unlike a syntax error (which prevents the program from starting), a runtime error happens while the user is in the middle of a task.

The division-by-zero bug only manifested as a runtime exception when the user entered a specific value.

In the context of media and cinema, 'runtime' is often used in the passive voice or with the verb 'to be.' For example, 'The film's runtime is listed as two hours.' It can also be used as an adjective: 'The runtime duration is longer than expected.' In marketing, a product's 'runtime' is a key selling point for battery-operated devices. A laptop with a 15-hour runtime is highly desirable. Here, the word bridges the gap between technical specification and consumer benefit.

The total runtime of the webinar series is approximately six hours of video content.

Comparison and Contrast: You can compare the runtimes of different versions of a program. 'Version 2.0 has a much shorter runtime than Version 1.0 thanks to better memory management.'

By moving the data processing to the cloud, we reduced the local runtime to nearly zero.

The engine's runtime logs showed that the overheating occurred after forty minutes of continuous use.

If you step into a software engineering office or a Silicon Valley startup, runtime is a word you will hear dozens of times a day. It is part of the daily lexicon of developers, QA testers, and DevOps engineers. You will hear it in 'stand-up' meetings when a developer says, 'I'm seeing some weird behavior at runtime that I can't replicate in the dev environment.' This implies that the code looks fine, but the execution is failing. It is also a staple in technical documentation and API references, where 'runtime requirements' list the software needed to run a package.

In the Film Industry: Film critics and cinema managers use 'runtime' to discuss scheduling and pacing. A review might state, 'Despite its three-hour runtime, the movie never feels slow.'

The theater needs to know the exact runtime to plan the daily screening schedule and cleaning breaks.

In the world of gaming, 'runtime' is often discussed in relation to 'game engines.' Players might talk about the 'Unity runtime' or the 'Unreal Engine runtime.' There was a significant controversy in 2023 regarding Unity's 'runtime fee,' which brought the word into mainstream gaming news. Here, it referred to the software layer that allows games to run on various devices. Gamers also use the word when discussing how long a handheld console like the Steam Deck or Nintendo Switch can play a specific game before the battery dies.

In Data Science: Data scientists use 'runtime' when training machine learning models. A model that takes three days to train has a long training runtime, which can be expensive in terms of cloud computing costs.

We switched to a GPU-accelerated runtime to speed up our neural network training by five times.

You will also encounter this word in consumer electronics reviews. When a reviewer tests a new pair of wireless headphones, they will measure the 'runtime'—the number of hours the headphones can play music. In this context, it is synonymous with 'battery life.' Similarly, for electric vehicles (EVs), while 'range' is the more common term, 'runtime' might be used to describe how long the climate control system can run while the car is parked.

The vacuum cleaner's runtime on 'Max Power' mode is only ten minutes, which is quite disappointing.

In Academic Research: Researchers in computational complexity theory study 'runtime complexity' (often using Big O notation) to describe how the execution time of an algorithm grows as the input size increases.

The paper proves that the new algorithm achieves a linear runtime, making it suitable for big data applications.

The interviewer asked me to explain the difference between runtime polymorphism and compile-time polymorphism.

One of the most frequent mistakes learners make is confusing runtime with 'uptime.' While both relate to how long something is running, they are used in different contexts. 'Uptime' refers to the total time a server or system has been operational without a reboot or failure (e.g., 'The server has 99.9% uptime'). 'Runtime' refers to the duration of a specific execution or the phase of execution itself. You wouldn't say 'The movie's uptime is two hours'; you must use 'runtime.'

Runtime vs. Execution Time: While often used interchangeably, 'execution time' usually refers to the CPU time spent on a task, whereas 'runtime' can include the entire wall-clock time from start to finish, including waiting for user input or network responses.

Incorrect: The runtime of the server was three months before it crashed. (Use 'uptime' instead).

Another common error is using 'runtime' when you mean 'real-time.' 'Real-time' refers to systems that must respond to inputs within a strict time constraint (like an airbag deployment system). 'Runtime' is simply the period of execution. A program can have a long runtime without being a real-time system. For example, a video rendering process has a long runtime, but it isn't 'real-time' because it doesn't need to respond to external events instantly.

Misusing 'At Runtime': Some learners say 'In the runtime.' The correct preposition is almost always 'at' (e.g., 'The error was caught at runtime'). Using 'in' makes it sound like you are inside a physical object.

Incorrect: We found the bug in the runtime. Correct: We found the bug at runtime.

Finally, avoid using 'runtime' to describe the time it takes to *write* the code. That is 'development time.' If you say, 'The runtime of this project was three weeks,' people will think you mean the program took three weeks to finish running one single task, which would be a very slow program! Instead, say 'The development cycle took three weeks.' Precision in these terms is what separates a junior from a senior professional.

Incorrect: Our team's runtime for the new feature was two days. (Use 'development time').

Confusing with 'Deadline': 'Runtime' is the duration of a process, not the point in time when something must be finished. Don't say 'The runtime for the report is Friday.'

Incorrect: What is the runtime for this task's completion? Correct: What is the deadline for this task?

The runtime of the play includes a fifteen-minute intermission between the acts.

Depending on the context, there are several words you might use instead of runtime. Understanding the nuances between these alternatives will help you sound more natural and precise. In the world of software, 'execution time' is the most common synonym, but it focuses specifically on the processing phase. 'Processing time' is often used in data-heavy contexts, such as when discussing how long it takes to analyze a large database.

Runtime vs. Duration: 'Duration' is a more general term. While 'runtime' is specific to programs or media, 'duration' can apply to anything from a meeting to a vacation. Use 'runtime' for technical or media contexts to sound more professional.

The duration of the flight was four hours, but the runtime of the in-flight movie was only ninety minutes.

In hardware contexts, 'battery life' or 'operating time' are often better choices. If you are selling a power tool, 'operating time' sounds more rugged and practical than 'runtime.' However, 'runtime' is becoming more common in consumer electronics marketing because it sounds high-tech. In the context of a system being 'up' or 'active,' you might use 'uptime' (as discussed in the mistakes section) or 'availability.' Availability is a business term used to describe the percentage of time a service is accessible to users.

Runtime vs. Lifespan: 'Lifespan' refers to the total time a product exists before it breaks permanently. 'Runtime' is how long it works on a single cycle or charge. A laptop has a five-year lifespan but a ten-hour runtime.

The lifespan of the server hardware is five years, but we monitor the runtime of every script to prevent overheating.

For those in the media industry, 'length' or 'running time' are the standard alternatives. 'Running time' is essentially the same as 'runtime,' but it is often written as two words and feels slightly more traditional. In sports, you might hear 'playing time,' which refers to how long a specific athlete was on the field. While 'runtime' wouldn't be used for a person, the concept is similar—it is the period of active participation in the event.

The running time of the opera is four hours, including two intermissions.

Technical Comparison: In programming, 'compile-time' is the direct opposite of 'runtime.' If something happens at compile-time, it is fixed before the program runs. If it happens at runtime, it is dynamic.

We need to decide if this validation should happen at compile-time or runtime.

The time complexity of the search is O(log n), which ensures a fast runtime even with millions of records.

How Formal Is It?

재미있는 사실

The term 'runtime' was popularized in the 1950s with the advent of stored-program computers like the UNIVAC and ENIAC, where the distinction between setting up the machine and actually running the calculation became critical.

발음 가이드

UK /ˈrʌntaɪm/

US /ˈrʌnˌtaɪm/

The primary stress is on the first syllable: RUN-time.

라임이 맞는 단어

Fun time Sun time One time Done time Gun time None time Ton time Pun time

자주 하는 실수

Pronouncing it as two separate words with equal stress: run time.
Confusing the 'u' sound with an 'oo' sound (e.g., roon-time).
Muttering the 'n' so it sounds like 'rut-time'.
Over-emphasizing the 'e' at the end of 'time'.
Stress on the second syllable: run-TIME.

난이도

독해 3/5

Common in technical articles and movie reviews.

쓰기 4/5

Requires understanding the difference between runtime and uptime.

말하기 3/5

Easy to pronounce but needs correct context.

듣기 2/5

Usually clear and stressed in speech.

다음에 무엇을 배울까

선수 학습

Run Time Program Error Battery

다음에 배울 것

Compile-time Latency Throughput Scalability Environment

고급

Polymorphism Introspection Dynamic binding Garbage collection Virtualization

알아야 할 문법

Compound Nouns

Runtime is a compound noun formed by combining 'run' and 'time'.

Prepositional Phrases

Use 'at runtime' to describe when something happens during execution.

Hyphenation

In modern English, 'runtime' is usually one word, but 'run-time' can be used as an adjective before a noun.

Uncountable vs Countable

'Runtime' is uncountable when referring to the phase, but countable when referring to specific durations.

Gerunds as Subjects

'Optimizing the runtime is our priority' uses a gerund as the subject.

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수준별 예문

The movie has a short runtime.

La película tiene una duración corta.

Simple subject-verb-object structure.

What is the runtime of this video?

¿Cuál es la duración de este video?

Question form using 'What is'.

The toy has a ten-minute runtime.

El juguete tiene una autonomía de diez minutos.

Compound adjective 'ten-minute' modifying runtime.

I like movies with a long runtime.

Me gustan las películas con una duración larga.

Prepositional phrase 'with a long runtime'.

The runtime is very long.

La duración es muy larga.

Using 'very' to modify the adjective 'long'.

Is the runtime one hour?

¿La duración es de una hora?

Simple yes/no question.

Check the runtime on the box.

Revisa la duración en la caja.

Imperative sentence.

The runtime is shown on the screen.

La duración se muestra en la pantalla.

Passive voice 'is shown'.

The battery gives the laptop a six-hour runtime.

La batería le da al portátil una autonomía de seis horas.

Indirect object 'the laptop' and direct object 'a six-hour runtime'.

This vacuum cleaner has a better runtime than the old one.

Esta aspiradora tiene una mejor autonomía que la anterior.

Comparative structure 'better... than'.

The total runtime of the album is forty minutes.

La duración total del álbum es de cuarenta minutos.

Noun phrase 'total runtime of the album'.

You can see the runtime in the settings menu.

Puedes ver el tiempo de funcionamiento en el menú de ajustes.

Modal verb 'can' for possibility.

The app crashed during its runtime.

La aplicación se cerró durante su ejecución.

Preposition 'during' followed by a possessive 'its'.

We need to know the runtime before we start.

Necesitamos saber la duración antes de empezar.

Subordinate clause starting with 'before'.

The runtime of the flight was delayed.

La duración del vuelo se retrasó.

Note: 'Flight time' is more common, but 'runtime' is used for the operation.

Does this light have a long runtime?

¿Esta luz tiene una larga duración?

Question using 'Does'.

The software encountered a runtime error and closed.

El software encontró un error de ejecución y se cerró.

Compound noun 'runtime error'.

We are trying to reduce the runtime of the backup process.

Estamos intentando reducir el tiempo de ejecución del proceso de respaldo.

Present continuous 'are trying' + infinitive 'to reduce'.

The runtime environment must be updated to the latest version.

El entorno de ejecución debe actualizarse a la última versión.

Modal 'must' + passive 'be updated'.

At runtime, the program allocates memory for the data.

En tiempo de ejecución, el programa asigna memoria para los datos.

Adverbial phrase 'At runtime' at the beginning of the sentence.

The script's runtime depends on the size of the file.

El tiempo de ejecución del script depende del tamaño del archivo.

Subject-verb agreement 'runtime depends'.

The developer is debugging a runtime exception.

El desarrollador está depurando una excepción de ejecución.

Present continuous 'is debugging'.

This version of the game has a faster runtime.

Esta versión del juego tiene una ejecución más rápida.

Comparative adjective 'faster'.

The runtime for the installation was about five minutes.

El tiempo de ejecución de la instalación fue de unos cinco minutos.

Past tense 'was'.

The application dynamically loads its configuration at runtime.

La aplicación carga dinámicamente su configuración en tiempo de ejecución.

Adverb 'dynamically' modifying the verb 'loads'.

Optimizing the algorithm significantly decreased the runtime.

Optimizar el algoritmo disminuyó significativamente el tiempo de ejecución.

Gerund 'Optimizing' as the subject of the sentence.

The Java Runtime Environment is required to run this application.

Se requiere el Entorno de Ejecución de Java para ejecutar esta aplicación.

Proper noun 'Java Runtime Environment'.

We need to monitor the runtime performance of the server.

Necesitamos monitorear el rendimiento en tiempo de ejecución del servidor.

Infinitive phrase 'to monitor' as the object.

Runtime polymorphism allows for more flexible code structures.

El polimorfismo en tiempo de ejecución permite estructuras de código más flexibles.

Technical term 'Runtime polymorphism'.

The error was not caught during compilation but appeared at runtime.

El error no se detectó durante la compilación sino que apareció en tiempo de ejecución.

Contrast using 'not... but'.

The runtime of the battery decreases as it gets older.

La autonomía de la batería disminuye a medida que envejece.

Complex sentence with 'as' indicating simultaneous change.

Cloud providers charge based on the runtime of your instances.

Los proveedores de la nube cobran según el tiempo de ejecución de sus instancias.

Prepositional phrase 'based on'.

The framework provides a robust runtime for distributed applications.

El marco de trabajo proporciona un entorno de ejecución robusto para aplicaciones distribuidas.

Adjective 'robust' modifying 'runtime'.

Identifying memory leaks at runtime is essential for system stability.

Identificar fugas de memoria en tiempo de ejecución es esencial para la estabilidad del sistema.

Gerund phrase as subject.

The runtime overhead of the virtualization layer was surprisingly low.

La sobrecarga de ejecución de la capa de virtualización fue sorprendentemente baja.

Noun phrase 'runtime overhead'.

The system uses a just-in-time compiler to enhance runtime speed.

El sistema utiliza un compilador justo a tiempo para mejorar la velocidad de ejecución.

Compound adjective 'just-in-time'.

Runtime introspection allows the program to examine its own state.

La introspección en tiempo de ejecución permite al programa examinar su propio estado.

Abstract noun 'introspection'.

The runtime behavior of the system was unpredictable under heavy load.

El comportamiento en tiempo de ejecución del sistema fue impredecible bajo una carga pesada.

Adjective 'unpredictable' in the predicate.

We must account for the runtime variability in our performance models.

Debemos tener en cuenta la variabilidad del tiempo de ejecución en nuestros modelos de rendimiento.

Phrasal verb 'account for'.

The runtime linker resolves dependencies when the application starts.

El enlazador de tiempo de ejecución resuelve las dependencias cuando se inicia la aplicación.

Technical term 'runtime linker'.

The runtime environment abstracts away the underlying hardware complexities.

El entorno de ejecución abstrae las complejidades del hardware subyacente.

Phrasal verb 'abstracts away'.

Leveraging runtime metrics, the system auto-scales to meet demand.

Aprovechando las métricas de tiempo de ejecución, el sistema se escala automáticamente para satisfacer la demanda.

Participle phrase 'Leveraging runtime metrics' for conciseness.

The C# runtime manages garbage collection to prevent memory exhaustion.

El entorno de ejecución de C# gestiona la recolección de basura para evitar el agotamiento de la memoria.

Infinitive of purpose 'to prevent'.

Runtime analysis revealed a race condition that was elusive during testing.

El análisis en tiempo de ejecución reveló una condición de carrera que fue elusiva durante las pruebas.

Relative clause 'that was elusive...'

The implementation of a custom runtime allowed for specialized optimizations.

La implementación de un entorno de ejecución personalizado permitió optimizaciones especializadas.

Noun phrase 'implementation of a custom runtime'.

Security vulnerabilities at runtime can lead to unauthorized code execution.

Las vulnerabilidades de seguridad en tiempo de ejecución pueden llevar a la ejecución de código no autorizado.

Modal 'can' expressing potentiality.

The runtime state of the virtual machine was captured for later debugging.

El estado de tiempo de ejecución de la máquina virtual fue capturado para su posterior depuración.

Passive voice 'was captured'.

The runtime binding of methods is a cornerstone of object-oriented design.

La vinculación en tiempo de ejecución de los métodos es una piedra angular del diseño orientado a objetos.

Metaphorical use of 'cornerstone'.

자주 쓰는 조합

Runtime error

Runtime environment

Total runtime

At runtime

Reduce runtime

Long runtime

Runtime library

Estimated runtime

Runtime efficiency

Average runtime

자주 쓰는 구문

Caught at runtime

— Refers to an error that is detected while the program is executing.

The bug was elusive because it could only be caught at runtime.

Runtime check

— A verification process that happens while the program is running.

The system performs a runtime check to ensure the user has permission.

Runtime configuration

— Settings that are applied while the program is active.

You can change the runtime configuration without restarting the app.

Runtime exception

— An unplanned event that disrupts the normal flow of a program.

A null pointer exception is a common type of runtime exception.

Runtime overhead

— The extra resources or time required to run a specific feature.

Encryption adds some runtime overhead to the file transfer.

Runtime support

— The tools and libraries provided to help a program run.

The operating system provides runtime support for basic input/output.

Short runtime

— A brief duration of operation or play.

The short runtime of the battery is its biggest drawback.

Extended runtime

— A longer than usual period of operation.

The backup power supply offers an extended runtime of two hours.

Runtime behavior

— How a program acts while it is being used.

We need to analyze the runtime behavior to find the bottleneck.

Runtime cost

— The financial or resource expense of running a process.

The runtime cost of this cloud function is very low.

자주 혼동되는 단어

runtime vs Uptime

Uptime is how long a system has been powered on. Runtime is how long a specific process takes to run.

runtime vs Real-time

Real-time refers to immediate processing. Runtime is just the period of execution, regardless of speed.

runtime vs Compile-time

Compile-time is when code is built. Runtime is when the finished code is actually used.

관용어 및 표현

"Run-time decision"

— A choice made in the moment based on current conditions rather than a plan.

Whether we launch today will be a run-time decision based on the weather.

Professional/Metaphorical

"In the long run"

— Over a long period of time; eventually.

In the long run, optimizing the runtime will save us thousands of dollars.

General

"Run out of time"

— To have no more time left to finish something.

The program ran out of time before it could finish the calculation.

General

"Hit the ground running"

— To start a new activity with great energy and success.

Our new developer hit the ground running and fixed three runtime bugs on day one.

Informal

"Run its course"

— To develop and finish naturally.

We let the simulation run its course to see the final result.

General

"Run a tight ship"

— To control a business or organization very strictly.

He runs a tight ship, ensuring every script has a minimal runtime.

Informal

"Run circles around"

— To do something much better than someone else.

This new processor runs circles around the old one in terms of runtime speed.

Informal

"Run the gauntlet"

— To go through a series of difficult challenges.

The code had to run the gauntlet of runtime tests before being approved.

Literary

"On the run"

— While moving or busy; also escaping from the law.

I checked the app's runtime logs while I was on the run between meetings.

Informal

"Run of the mill"

— Ordinary and not special in any way.

It was just a run-of-the-mill runtime error, nothing to worry about.

Informal

혼동하기 쉬운

runtime vs Execution

Both refer to running code.

Execution is the act of running; runtime is the time period or environment in which it happens.

The execution of the command was successful during the program's runtime.

runtime vs Duration

Both describe length of time.

Duration is general; runtime is specific to machines, programs, or media.

The duration of the meeting was an hour, but the runtime of the demo was ten minutes.

runtime vs Lifetime

Both describe how long something lasts.

Lifetime is the total existence of an object; runtime is a single session of use.

The battery's lifetime is three years, but its runtime is eight hours.

runtime vs Latency

Both relate to time in computing.

Latency is the delay before a task starts; runtime is how long the task takes once it starts.

High latency delayed the start, but the runtime itself was very fast.

runtime vs Throughput

Both are performance metrics.

Throughput is how much work is done in a time period; runtime is the time taken for one piece of work.

We increased throughput by reducing the runtime of individual tasks.

문장 패턴

The [noun] has a [adjective] runtime.

The movie has a long runtime.

What is the runtime of [noun]?

What is the runtime of this video?

The [noun] occurred at runtime.

The error occurred at runtime.

We need to [verb] the runtime of [noun].

We need to optimize the runtime of the script.

The runtime [noun] is [adjective].

The runtime overhead is significant.

Leveraging [noun], we can [verb] runtime [noun].

Leveraging runtime metrics, we can improve runtime stability.

It is a [noun] runtime error.

It is a common runtime error.

Because of the [noun], the runtime [verb].

Because of the update, the runtime decreased.

어휘 가족

명사

Runtime

Runner

Run

Running

동사

Run

Rerunning

형용사

Runnable

Running

사용법

frequency

Very common in IT, engineering, and media industries.

자주 하는 실수

Using 'runtime' for the time spent writing code. → Development time.
Runtime only refers to when the program is executing, not when it is being created.
Saying 'The server's runtime was 48 hours.' → The server's uptime was 48 hours.
Uptime is for the system being powered on; runtime is for a specific process or duration of use.
Using 'in the runtime' instead of 'at runtime'. → The error occurred at runtime.
'At runtime' is the standard idiomatic phrase in the tech industry.
Confusing 'runtime' with 'real-time'. → This is a real-time system.
Real-time means 'instantaneous response,' while runtime is just the duration of execution.
Writing 'run time' as two words in a technical report. → The runtime performance was measured.
While not a grammar error, the single-word form is the professional standard in IT.

팁

Use for Media

When talking about a podcast or a video, use 'runtime' to sound more professional than just saying 'how long it is.'

Distinguish from Compile-time

Remember that runtime is the 'live' phase. If you can see the program working, you are in the runtime phase.

Preposition Choice

Always use 'at runtime' or 'during runtime.' Avoid saying 'in the runtime' as it is non-standard.

Efficiency

In a job interview, talk about 'minimizing runtime' to show you care about software performance.

Battery Specs

When comparing gadgets, look for the 'runtime' specification to understand how long the battery actually lasts under use.

Synonym Choice

Use 'execution time' in academic papers and 'runtime' in general professional software discussions.

One Word

Write 'runtime' as one word in all professional emails and documentation to follow modern conventions.

Check the Domain

If you are in a film class, 'runtime' is about minutes. If you are in a coding class, it is about milliseconds and memory.

Runtime Exceptions

Learn to distinguish between 'runtime exceptions' (which can be handled) and 'crashes' (which stop the program).

CEFR Level

As a B2 learner, you should be able to explain the concept of runtime to a non-technical person using simple analogies.

암기하기

기억법

Think of a 'RUNner' in a race. The 'TIME' they are actually running on the track is their 'RUNTIME.' Before the race (compiling) doesn't count!

시각적 연상

Imagine a green 'Play' button. When you press it, a clock starts ticking. That ticking clock represents the runtime.

Word Web

Execution Duration Environment Error Performance Battery Movie Algorithm

챌린지

Try to use 'runtime' in three different ways today: once about a movie, once about your phone battery, and once about a computer task.

어원

The word is a compound of 'run' (from Old English 'rinnan') and 'time' (from Old English 'tīma'). It emerged in the mid-20th century alongside the development of electronic computing.

원래 의미: The period during which a machine or process is in operation.

Germanic (English)

문화적 맥락

The word is neutral and has no offensive connotations.

In the US and UK, 'runtime' is the standard term in both Hollywood and Silicon Valley.

The 'Java Runtime Environment' (JRE) is one of the most famous uses of the word. Movie databases like IMDb always list the 'Runtime' of a film. The 'Unity Runtime Fee' controversy of 2023.

실생활에서 연습하기

실제 사용 상황

Software Development

Debug at runtime
Runtime exception
Optimize runtime
Runtime environment

Cinema and Media

Total runtime
Running time
Feature-length runtime
Theatrical runtime

Consumer Electronics

Battery runtime
Continuous runtime
Maximum runtime
Standby runtime

Data Science

Training runtime
Algorithm runtime
Execution runtime
Runtime metrics

Project Management

Estimated runtime
Process runtime
System runtime
Task runtime

대화 시작하기

"What is the average runtime of your most frequent data processing scripts?"

"Do you prefer movies with a long runtime or something shorter and punchier?"

"Have you ever encountered a runtime error that was impossible to fix?"

"How do you usually measure the runtime efficiency of your applications?"

"Is the runtime of the new electric car enough for your daily commute?"

일기 주제

Describe a time when a runtime error ruined a project you were working on. How did you fix it?

Compare the runtime of two different devices you own. Which one is more efficient and why?

If you could reduce the runtime of any daily chore, which one would it be and how would it change your life?

Write a technical explanation of why runtime performance matters more than code beauty.

Discuss whether you think movies are getting too long. Does a long runtime add value to a story?

자주 묻는 질문

10 질문

In modern technical and professional English, 'runtime' is almost always written as one word. In older texts or very general contexts, you might see 'run time' or 'run-time,' but 'runtime' is the preferred standard in the industry today.

A runtime error is a problem that occurs while a program is running. Unlike syntax errors, which are found when the code is being written, runtime errors happen because of unexpected data, memory issues, or logic flaws that only appear during execution.

Uptime refers to the total time a server or computer has been running without being turned off. Runtime refers to the duration of a specific program or the phase when that program is active. A server might have an uptime of 100 days, but a script running on it might have a runtime of 5 seconds.

No, 'runtime' is generally reserved for machines, software, and media like movies or music. For a meeting, 'duration' or 'length' are much more appropriate terms. Using 'runtime' for a meeting would sound strange to native speakers.

The phrase 'at runtime' means 'while the program is running.' It is used to describe actions, decisions, or errors that take place during the execution phase of software, rather than during the design or compilation phases.

A runtime environment is the set of software and hardware resources that allow a program to run. For example, the Java Runtime Environment (JRE) provides the necessary libraries and virtual machine to execute Java code on your computer.

Generally, yes. Runtime begins the moment the process is loaded into memory and starts executing, and it ends when the process terminates. This includes the startup time, the active use time, and the shutdown time.

It depends on the context. For a battery, a longer runtime is better. For a movie, it depends on the viewer's preference. For a computer script or a data process, a shorter runtime is usually better because it means the task was completed more quickly.

Runtime complexity is a mathematical way to describe how the execution time of an algorithm increases as the amount of data it processes grows. It is usually expressed using Big O notation, such as O(n) or O(n²).

Movies have a listed runtime so that theaters can plan their schedules and viewers know how much time they need to set aside. It includes everything from the first production logo to the very end of the credits.

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