A2 noun #3,000 رایج‌ترین 5 دقیقه مطالعه

長さ

Length is how long something is, measured from one end to the other.

nagasa

Explanation at your level:

Hello! Today we learn 'length'. 'Length' is how long something is. Like a toy car has a length. A pencil has a length. We can measure it! You can say 'The pencil's length is 15 cm.' It is easy!

Hello! Let's talk about the word 'length'. It means how long something is from one end to the other. For example, 'What is the length of this table?' You can measure it with a ruler. We also use it for time, like 'the length of the movie was 2 hours'. It's a useful word for describing size!

The word 'length' is very useful for describing the measurement of something from end to end. You can ask, 'What is the length of the garden?' or state, 'The length of the road is quite long.' It's also used for duration, such as 'the length of the meeting'. Remember common phrases like 'full length' for movies or 'go to great lengths' to mean trying very hard.

'Length' is a fundamental noun referring to the measurement of extent, typically the longest dimension of an object or the duration of time. You'll encounter it in contexts like engineering ('the length specifications') or discussions about time ('the length of the contract'). Be aware of its idiomatic use, such as 'at length' (meaning in detail or finally) and 'the length and breadth of something' (meaning comprehensively).

The noun 'length' denotes the spatial dimension or extent from end to end, or the duration of time. Beyond its literal measurement applications, 'length' is employed figuratively. For instance, 'to go to great lengths' signifies undertaking significant effort. In academic or technical writing, it's crucial for specifying dimensions. Consider its use in phrases like 'full-length feature' or 'at considerable length' when discussing detailed arguments.

'Length', derived from Old English 'lengþ', signifies the measure of spatial extent or temporal duration. Its etymological connection to 'long' highlights its core meaning. Beyond its quantifiable applications in physics, engineering, and geography, 'length' is embedded in idiomatic expressions like 'at length' (implying exhaustive detail or eventual conclusion) and 'the length and breadth of...' (signifying comprehensive coverage). Its historical usage reflects a persistent human need to delineate and measure the world, both physically and temporally.

واژه در 30 ثانیه

  • Length means how long something is, from end to end.
  • It can refer to physical distance or duration of time.
  • Common phrases include 'full length', 'great length', and 'at length'.
  • Remember the difference between the adjective 'long' and the noun 'length'.

Hey there! Let's dive into the word length. It's a super common word that basically means how long something is. Think about measuring a table, a piece of string, or even the distance between two cities – you're measuring its length!

We use it to describe the size of things in one dimension. When you hear 'length', picture a straight line or the longest side of something. It’s a fundamental concept that helps us understand and quantify the world around us, from the tiny length of a ladybug to the vast length of a river.

It's not just about physical objects, either. We can talk about the length of time, like the 'length of the movie', or the 'length of a speech'. In these cases, it refers to duration, the amount of time something lasts. So, remember, length is all about how far, or how long, something extends!

The word length has a long and fascinating history, stretching all the way back to ancient Germanic roots. It comes from the Old English word 'lengþ', which meant 'extent, distance, duration'. This, in turn, is related to the Old English adjective 'lang', meaning 'long'. You can see the connection, right?

This 'lang' root is shared across many Germanic languages. For instance, in German, you have 'lang' for 'long', and in Dutch, it's 'lang'. This suggests that the concept of measuring extent and the word itself have been around for a very, very long time, evolving alongside human civilization's need to quantify space and time.

Over centuries, 'lengþ' morphed into the modern 'length'. The '-th' ending is a common way in English to form abstract nouns from adjectives, like 'warmth' from 'warm' or 'strength' from 'strong'. So, 'length' literally means 'the quality or state of being long'. It’s a testament to how language evolves, keeping core meanings while adapting its form. Pretty cool, huh?

You'll find length used in countless situations, both formal and informal. It's a versatile word that's essential for describing size and duration. We often use it with measurement units, like 'the length of the room is 5 meters' or 'what is the length of this rope?'.

Common collocations – words that frequently go together – include 'full length', 'proper length', 'considerable length', and 'great length'. For example, 'The movie is of full length' means it's a standard, feature-length film. 'He went to great length to impress her' means he made a big effort.

In more technical or formal contexts, you might hear 'lengthwise' (meaning in the direction of the length) or 'lengthy' (meaning long in duration or extent). For instance, 'The report was lengthy' suggests it was long, perhaps too long. In casual chat, we might just ask, 'How long is it?' but 'length' is the precise noun form we use when we need to be specific about the measurement itself.

The word length pops up in some really interesting idioms and expressions that add color to our language. These phrases often go beyond the literal meaning of measuring something.

Here are a few common ones:

  • At length: This means 'finally' or 'after a long time', or it can mean 'in detail'. Example: 'After much discussion, they finally agreed at length.'
  • Go to great lengths: This means to try very hard to achieve something, often involving a lot of effort or difficulty. Example: 'She went to great lengths to bake the perfect cake for his birthday.'
  • Full length: Used to describe something that is complete or covers the entire extent, especially in movies or portraits. Example: 'The portrait was painted in full length.'
  • Length and breadth: This idiom means covering all aspects or covering a wide area thoroughly. Example: 'We explored the length and breadth of the country on our trip.'
  • In length: This is a more direct way to talk about measurement, often used in comparisons. Example: 'The snake was 2 meters in length.'

Understanding these expressions can really boost your fluency and help you grasp the nuances of English!

Grammatically, length is a straightforward noun. It's typically used as a singular, uncountable noun when referring to the general concept of extent or duration, like 'the length of the road is impressive'. However, it can be used in the plural, 'lengths', when referring to specific measurements or different extents, especially in contexts like 'They measured the lengths of several pieces of wood'.

Pronunciation is key! In British English, it's often pronounced /leŋkθ/, with a subtle 'k' sound often appearing before the 'th'. In American English, it's very similar, often /leŋkθ/ or sometimes closer to /lɛŋkθ/. The stress is always on the first syllable: LENGTH.

Some words that rhyme with length include 'strength' and 'trench'. A common pronunciation pitfall is omitting the 'k' sound, making it sound like 'len-th', which is less common in standard pronunciation. Pay attention to that little 'k' sound!

Fun Fact

The '-th' suffix used to create 'length' is the same one used in words like 'strength' and 'warmth', turning adjectives into nouns describing a quality or state.

Pronunciation Guide

UK /leŋkθ/

Sounds like 'lenkth', with the 'g' making a 'k' sound before the 'th'.

US /leŋkθ/

Similar to UK, often with a slightly clearer 'k' sound.

Common Errors

  • Pronouncing it as 'len-th' (missing the 'k' sound).
  • Stressing the wrong syllable (stress is on the first syllable).
  • Difficulty with the final 'kθ' sound cluster.

Rhymes With

strength trench clench

Difficulty Rating

خواندن 2/5

Easy to understand in most contexts.

Writing 2/5

Straightforward to use correctly.

Speaking 2/5

Commonly used in everyday speech.

شنیدن 2/5

Easily recognizable.

What to Learn Next

Prerequisites

long measure distance time

Learn Next

dimension extent width height duration

پیشرفته

linear spatial temporal quantify

Grammar to Know

Using Adjectives vs. Nouns

The road is LONG (adj). The LENGTH of the road is 5 miles (noun).

Countable vs. Uncountable Nouns

We need A length of pipe (countable). Length is important (uncountable).

Prepositional Phrases with 'of'

The length OF the rope.

Examples by Level

1

The toy car has a length.

The / toy car / has / a / length.

'length' is a thing you can measure.

2

What is the length?

What / is / the / length?

Use 'what' to ask for information.

3

The rope has length.

The / rope / has / length.

Use 'a' or 'the' before 'length' when possible.

4

It is long length.

It / is / long / length.

Usually we say 'long' or 'length', not 'long length'.

5

The book length is good.

The / book / length / is / good.

'length' is a noun.

6

Measure the length.

Measure / the / length.

Use 'measure' as a verb.

7

This is my length.

This / is / my / length.

We usually talk about 'height' for people, not 'length'.

8

The length is big.

The / length / is / big.

Use 'big' or 'long' to describe length.

1

What is the length of this table?

What / is / the / length / of / this / table?

Use 'of' to connect 'length' to the object.

2

The swimming pool has a great length.

The / swimming / pool / has / a / great / length.

'Great' here means large or impressive.

3

We measured the length of the garden.

We / measured / the / length / of / the / garden.

'Measured' is the past tense of 'measure'.

4

The movie's length was about two hours.

The / movie's / length / was / about / two / hours.

Use the possessive ('s) to show belonging.

5

Can you tell me the length of the scarf?

Can / you / tell / me / the / length / of / the / scarf?

Asking politely with 'Can you tell me...'.

6

The piece of string had a surprising length.

The / piece / of / string / had / a / surprising / length.

'Surprising' means unexpected.

7

He needs to cut the wood to the correct length.

He / needs / to / cut / the / wood / to / the / correct / length.

'Correct' means right or accurate.

8

The length of the journey took all day.

The / length / of / the / journey / took / all / day.

'Journey' means a trip or travel.

1

The report detailed the full length of the project.

The / report / detailed / the / full / length / of / the / project.

'Detailed' means explained with many facts.

2

He went to great lengths to ensure the event was perfect.

He / went / to / great / lengths / to / ensure / the / event / was / perfect.

Idiom: 'go to great lengths' means to try very hard.

3

What is the standard length for a king-size bed?

What / is / the / standard / length / for / a / king-size / bed?

'Standard' means the usual or normal size.

4

The artist is known for her full-length portraits.

The / artist / is / known / for / her / full-length / portraits.

'Full-length' describes a complete representation.

5

We discussed the issue at length.

We / discussed / the / issue / at / length.

Idiom: 'at length' means for a long time or in detail.

6

The instruction manual was of considerable length.

The / instruction / manual / was / of / considerable / length.

'Considerable' means large or significant.

7

They explored the length and breadth of the ancient ruins.

They / explored / the / length / and / breadth / of / the / ancient / ruins.

Idiom: 'length and breadth' means all over.

8

The required length of the essay is 1000 words.

The / required / length / of / the / essay / is / 1000 / words.

'Required' means necessary or demanded.

1

The construction project exceeded its projected length due to unforeseen delays.

The / construction / project / exceeded / its / projected / length / due / to / unforeseen / delays.

'Exceeded' means went beyond; 'projected' means planned.

2

Researchers are investigating the optimal length for recovery after the surgery.

Researchers / are / investigating / the / optimal / length / for / recovery / after / the / surgery.

'Optimal' means the best possible.

3

He argued his case at considerable length, leaving no stone unturned.

He / argued / his / case / at / considerable / length, / leaving / no / stone / unturned.

'Leaving no stone unturned' is an idiom for thoroughness.

4

The documentary explored the entire length of the Amazon River.

The / documentary / explored / the / entire / length / of / the / Amazon / River.

'Entire' means whole or complete.

5

They had to go to extraordinary lengths to secure the funding.

They / had / to / go / to / extraordinary / lengths / to / secure / the / funding.

'Extraordinary' means very unusual or remarkable.

6

The committee debated the proposed legislation at length.

The / committee / debated / the / proposed / legislation / at / length.

'Debated' means discussed formally, often with opposing views.

7

The novel's great length might deter some readers.

The / novel's / great / length / might / deter / some / readers.

'Deter' means discourage.

8

We need to ascertain the precise length of the cable required.

We / need / to / ascertain / the / precise / length / of / the / cable / required.

'Ascertain' means to find out for sure; 'precise' means exact.

1

The sheer length of the bureaucratic process often leads to frustration.

The / sheer / length / of / the / bureaucratic / process / often / leads / to / frustration.

'Sheer' emphasizes the size/extent; 'bureaucratic' relates to complex rules and procedures.

2

He meticulously documented the length and breadth of his research findings.

He / meticulously / documented / the / length / and / breadth / of / his / research / findings.

'Meticulously' means very carefully and precisely.

3

The play, despite its considerable length, maintained a compelling narrative arc.

The / play, / despite / its / considerable / length, / maintained / a / compelling / narrative / arc.

'Compelling' means evoking interest, attention, or admiration in a powerfully irresistible way.

4

The diplomat spoke at length about the implications of the new trade agreement.

The / diplomat / spoke / at / length / about / the / implications / of / the / new / trade / agreement.

'Implications' are the possible effects or results.

5

They were prepared to go to extraordinary lengths to achieve their objective.

They / were / prepared / to / go / to / extraordinary / lengths / to / achieve / their / objective.

'Objective' is the goal or aim.

6

The sheer length of the novel requires a significant time commitment from the reader.

The / sheer / length / of / the / novel / requires / a / significant / time / commitment / from / the / reader.

'Significant' means important or noteworthy.

7

The investigation covered the full length of the suspect's criminal history.

The / investigation / covered / the / full / length / of / the / suspect's / criminal / history.

'Criminal history' refers to past offenses.

8

We need to consider the potential length of the economic downturn.

We / need / to / consider / the / potential / length / of / the / economic / downturn.

'Potential' means possible; 'downturn' means a decline.

1

The philosophical treatise examined the existential length of human consciousness.

The / philosophical / treatise / examined / the / existential / length / of / human / consciousness.

'Existential' relates to existence; 'consciousness' is awareness.

2

He delved into the length and breadth of the historical period, uncovering forgotten narratives.

He / delved / into / the / length / and / breadth / of / the / historical / period, / uncovering / forgotten / narratives.

'Delved' means researched deeply; 'narratives' are stories.

3

The artistic installation spanned the entire length of the gallery, challenging conventional spatial perceptions.

The / artistic / installation / spanned / the / entire / length / of / the / gallery, / challenging / conventional / spatial / perceptions.

'Spanned' means extended across; 'conventional' means traditional.

4

The speaker expounded at length on the theoretical underpinnings of quantum mechanics.

The / speaker / expounded / at / length / on / the / theoretical / underpinnings / of / quantum / mechanics.

'Expounded' means explained in detail; 'underpinnings' are the basic principles.

5

The activists were prepared to go to extreme lengths to protest the environmental damage.

The / activists / were / prepared / to / go / to / extreme / lengths / to / protest / the / environmental / damage.

'Extreme' means very great or intense.

6

The novel's formidable length was matched only by its intricate plotting and character development.

The / novel's / formidable / length / was / matched / only / by / its / intricate / plotting / and / character / development.

'Formidable' means inspiring respect or fear due to size or difficulty; 'intricate' means complex.

7

The legal precedent addressed the full length of contractual obligations.

The / legal / precedent / addressed / the / full / length / of / contractual / obligations.

'Precedent' is a previous case used as a guide; 'contractual obligations' are duties under a contract.

8

Analysts debated the potential length of the recession, with forecasts varying wildly.

Analysts / debated / the / potential / length / of / the / recession, / with / forecasts / varying / wildly.

'Wildly' means in an uncontrolled or unpredictable way.

ترکیب‌های رایج

full length
great length
considerable length
measure the length
what is the length
length of time
length of service
lengthwise
proper length
maximum length

Idioms & Expressions

"at length"

For a long time; in detail.

We debated the proposal at length.

neutral

"go to great lengths"

To try very hard to achieve something.

She went to great lengths to organize the surprise party.

neutral

"full length"

Complete; covering the entire extent (often used for films, portraits, or clothing).

The actor starred in a full-length movie.

neutral

"length and breadth"

Covering all aspects or areas thoroughly.

They traveled the length and breadth of the country.

neutral

"in length"

Used to specify the measurement of length.

The snake was three meters in length.

neutral

"stretch to its full length"

To extend as far as possible.

The elastic was stretched to its full length.

neutral

Easily Confused

長さ vs duration

Both refer to how long something lasts.

Length primarily refers to physical distance but can also mean time. Duration specifically refers only to time.

The length of the rope was 10 meters. The duration of the concert was 3 hours.

長さ vs extent

Both refer to how far or much something goes.

Length usually implies a measurement along a line (the longest dimension). Extent can be more general, referring to scope, range, or degree.

The length of the table is 2 meters. The extent of the damage was severe.

長さ vs width

Both are dimensions of an object.

Length is typically the longest dimension, while width is the measurement side-to-side, perpendicular to length.

The river's length is 100 km, but its width is only 20 meters.

長さ vs long

Closely related concepts of measurement.

Long is an adjective (describes something as having length). Length is a noun (the measurement itself).

The scarf is long. The length of the scarf is 1.5 meters.

Sentence Patterns

A1-C2

The [noun] of the [noun] is [measurement].

The length of the table is 1.5 meters.

A1-C2

What is the [noun] of the [noun]?

What is the length of the hallway?

A1-C2

Measure the [noun] of the [noun].

Measure the length of the fabric.

A2-C2

The [noun] has a [adjective] [noun].

The snake has a surprising length.

B1-C2

He went to great [noun] to...

He went to great lengths to impress her.

خانواده کلمه

Nouns

length the measurement of how long something is

Verbs

lengthen to make or become longer

Adjectives

long having great length

مرتبط

longing related to the adjective 'long', but means a strong desire

How to Use It

Formality Scale

most formal usage: 'The precise length was documented.' neutral: 'What is the length of the rope?' casual: 'How long is it?' (using 'long' instead of 'length') slang: Not typically used in slang.

اشتباهات رایج

Using 'long' as a noun instead of 'length'. What is the length of the table?
'Long' is an adjective (e.g., 'The table is long'). 'Length' is the noun for the measurement itself.
Confusing 'length' (distance) with 'duration' (time). The length of the movie was 2 hours.
While 'length' can refer to time, 'duration' is often more precise for time periods.
Saying 'long length'. The length is long.
This is redundant. Use 'long' as an adjective or 'length' as a noun.
Omitting the 'k' sound in pronunciation. Pronounce it like 'leng(k)th'.
The 'g' often assimilates with the 'th' sound, creating a 'k' sound in between.
Using 'length' when 'width' or 'height' is more appropriate. The width of the road is 10 meters.
Choose the dimension word that accurately describes the measurement.

Tips

💡

Visualize the Measurement

When you hear 'length', picture a ruler or tape measure. This helps connect the word to its core meaning of measurement.

🌍

Units Matter

In English-speaking countries, be aware of both metric (meters, cm) and imperial (feet, inches) units when discussing length.

💡

Adjective vs. Noun

Don't confuse the adjective 'long' with the noun 'length'. 'The road is long' (adjective). 'The length of the road is 5 miles' (noun).

💡

The 'k' Sound

Practice saying 'leng(k)th' clearly. Many native speakers include a subtle 'k' sound before the 'th'.

💡

Avoid Redundancy

Phrases like 'long length' are redundant. Use either 'long' (adjective) or 'length' (noun), but not both together.

💡

Ancient Roots

The word 'length' has been around in English for over a thousand years, evolving from Old English 'lengþ'!

💡

Measure Your World

Actively measure things around you (your desk, your book, your stride) and say the 'length' out loud. Practical application aids memory.

💡

Idiom Power

Learn idioms like 'go to great lengths' or 'at length'. They add fluency and understanding beyond literal meanings.

💡

Word Family Links

Remember 'long' (adjective), 'lengthen' (verb), and 'lengthwise' (adverb). They all relate to the core concept of extension.

Memorize It

Mnemonic

Imagine a very LONG snake (length) reaching the END (length).

Visual Association

Picture a measuring tape unrolling to show a long distance.

Word Web

measurement distance size long time duration extent dimension

چالش

Measure the length of five different objects in your room and write them down.

ریشه کلمه

Old English

Original meaning: 'lengþ', meaning 'extent, distance, duration', from the adjective 'lang' (long).

بافت فرهنگی

No major cultural sensitivities associated with the word 'length' itself, but discussions about 'lengthy' processes or delays can be sensitive in business or political contexts.

Length is a universal concept, but specific units (feet, meters) and cultural attitudes towards time (punctuality vs. flexibility) can vary.

'The Fellowship of the Ring' is the first volume in 'The Lord of the Rings', a novel of considerable length. The phrase 'going to great lengths' is often used in stories of heroism or dedication.

Practice in Real Life

Real-World Contexts

Shopping for materials (fabric, wood, cable)

  • What length do you need?
  • We need a specific length.
  • Cut it to this length.

Discussing travel or journeys

  • The length of the flight was 10 hours.
  • We drove for the entire length of the country.

Talking about media (movies, books, songs)

  • What's the length of the movie?
  • The book's great length might be intimidating.

Construction and DIY

  • We need to calculate the required length.
  • Ensure the proper length is used.

Conversation Starters

"What's the length of your favorite book?"

"If you could travel to the furthest length of the world, where would you go?"

"Do you prefer short movies or movies of considerable length?"

"How do you feel about the length of your typical workday?"

"What's the longest length of time you've ever spent on a single task?"

Journal Prompts

Describe an object and its length. What do you use it for?

Write about a time you had to go to great lengths to achieve something.

Reflect on the length of a recent journey you took. Was it tiring or enjoyable?

Imagine a world where everything was measured in 'lengths' instead of meters or feet. How would that change things?

سوالات متداول

8 سوال

'Long' is an adjective describing something that has great length (e.g., 'a long road'). 'Length' is the noun that refers to the measurement itself (e.g., 'the length of the road').

Yes, 'length' can refer to the duration of time, just like it refers to physical distance. For example, 'the length of the movie' or 'the length of the meeting'.

It means to make a very big effort or try extremely hard to achieve something, often involving difficulty or inconvenience.

It can be both. As an uncountable noun, it refers to the general concept ('length matters'). As a countable noun (plural 'lengths'), it refers to specific measurements or different extents ('They cut several lengths of wood').

It's pronounced roughly 'leng(k)th', with the stress on the first syllable. Pay attention to the 'k' sound that often appears before the 'th'.

Common antonyms related to dimensions are 'width', 'height', and 'depth'.

'Length' usually refers to the longest dimension or a specific measurement, while 'extent' can refer to the range or scope, which might not be a single line.

A common mistake is using 'long' as a noun instead of 'length', or confusing it with 'duration' when the context is strictly about physical measurement.

خودت رو بسنج

fill blank A1

The ____ of the pencil is 15 cm.

درسته! نه دقیقاً. پاسخ صحیح: length

'Length' is the noun used for measurement.

multiple choice A2

Which word means how long something is?

درسته! نه دقیقاً. پاسخ صحیح: Length

Length specifically refers to the measurement from end to end.

true false B1

You can use 'length' to describe how long a movie lasts.

درسته! نه دقیقاً. پاسخ صحیح: درست

Yes, 'length' can refer to duration as well as physical distance.

match pairs B1

Word

معنی

All matched!

These pairs match common phrases with their meanings.

sentence order B2

کلمات زیر رو بزن تا جمله رو بسازی
درسته! نه دقیقاً. پاسخ صحیح:

The correct sentence is 'He went to great lengths'.

fill blank B2

The ______ of the discussion was surprisingly short.

درسته! نه دقیقاً. پاسخ صحیح: length

While 'duration' and 'extent' are related, 'length' fits best for the time of a discussion in this context.

multiple choice C1

Which phrase means to try extremely hard?

درسته! نه دقیقاً. پاسخ صحیح: Go to great lengths

'Go to great lengths' is the established idiom for making a significant effort.

true false C1

The word 'length' can only refer to physical distance.

درسته! نه دقیقاً. پاسخ صحیح: نادرست

'Length' can also refer to duration (time) or abstract extent.

sentence creation B1

Write a sentence using 'length' to describe a physical object.

درسته! نه دقیقاً. پاسخ صحیح: The length of the table is 2 meters.

This sentence correctly uses 'length' to describe the size of an object.

fill blank C2

The report covered the ______ and ______ of the issue.

درسته! نه دقیقاً. پاسخ صحیح: length, breadth

'Length and breadth' is an idiom meaning comprehensively.

امتیاز: /10

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