lifetime
A lifetime is the total amount of time that a person or thing exists.
Explanation at your level:
A lifetime is all the years you live. You start at birth and end when you die. It is a long time!
We use lifetime to talk about how long something lasts. For example, a car might have a long lifetime if you take care of it well.
In B1 English, we use lifetime to describe experiences. A once-in-a-lifetime trip is a trip you might only take once because it is very special or expensive.
At this level, you will encounter lifetime in professional contexts, such as a lifetime warranty on a product or a lifetime ban from a sports stadium.
Advanced learners use lifetime to discuss legacies or historical spans. It is often used in academic papers to describe the operational lifetime of a specific technology or chemical compound.
At the mastery level, lifetime can be used figuratively to describe the duration of an idea or a cultural movement. It carries the weight of historical perspective and existential reflection in literature.
Palabra en 30 segundos
- Refers to the total duration of a life.
- Also used for the lifespan of objects.
- Commonly used in idioms like 'once-in-a-lifetime'.
- Always written as one word.
Think of lifetime as the complete story of a person's existence from start to finish. It is a word that carries a lot of weight because it represents the entirety of our experiences.
Beyond just people, we use this word for objects too. If you buy a high-quality tool, you might hear that it has a lifetime guarantee, meaning the company expects it to last as long as you do!
The word lifetime is a classic example of a compound word. It combines the Old English lif (life) and tīma (time).
It has been used in the English language since the Middle Ages. The evolution is quite straightforward: it simply merged two fundamental concepts to describe the span of human existence. It's a beautiful example of how Germanic roots create clear, descriptive English terms.
You will often see lifetime paired with words like achievement, ban, or guarantee. It is used in both casual conversation and professional settings.
When you say something is a once-in-a-lifetime opportunity, you are emphasizing how rare and special that moment is. It is a very common way to express extreme value or rarity in English.
Once in a lifetime: Something that happens very rarely. Example: Traveling to space is a once-in-a-lifetime experience.
Lifetime achievement: Recognition for a whole career. Example: She received a lifetime achievement award for her acting.
To last a lifetime: Something that is durable. Example: This watch is built to last a lifetime.
A lifetime of: A long period of something. Example: He spent a lifetime of study on biology.
In a lifetime: Within the span of a life. Example: I have never seen such a storm in my lifetime.
The word is a singular countable noun. The plural form is lifetimes.
Pronunciation: UK /ˈlaɪftaɪm/, US /ˈlaɪftaɪm/. The stress is on the first syllable. It rhymes with bedtime, daytime, meantime, prime, and slime.
Fun Fact
It is a perfect example of a compound word from Old English roots.
Pronunciation Guide
Clear 'i' sound followed by 'f' and 'time'.
Similar to UK, clear 't' sound.
Common Errors
- Mispronouncing the 'f'
- Adding extra syllables
- Stressing the second syllable
Rhymes With
Difficulty Rating
Easy to read
Simple to use
Commonly used
Easy to hear
What to Learn Next
Prerequisites
Learn Next
Avanzado
Grammar to Know
Compound Nouns
lifetime
Countable Nouns
a lifetime
Adjective Phrases
once-in-a-lifetime
Examples by Level
My dog has a happy lifetime.
dog / happy / life
Possessive pronoun.
I want to travel in my lifetime.
travel / life
Prepositional phrase.
The cat has a long lifetime.
cat / long / life
Adjective usage.
It is a lifetime dream.
dream / life
Attributive noun.
He worked for a lifetime.
work / life
Past tense verb.
This is a new lifetime.
new / life
Article usage.
She loves her lifetime.
love / life
Simple present.
One lifetime is enough.
enough / life
Quantifier usage.
The battery has a short lifetime.
She studied for a lifetime.
It was a once-in-a-lifetime event.
He gave a lifetime of service.
This house will last a lifetime.
I hope to see it in my lifetime.
The machine has reached the end of its lifetime.
They shared a lifetime of memories.
The software has a limited lifetime.
She received a lifetime achievement award.
It is the chance of a lifetime.
He dedicated his lifetime to science.
The bridge has a 50-year lifetime.
I have never seen such change in my lifetime.
We built a friendship to last a lifetime.
The product comes with a lifetime warranty.
The project spans a lifetime of research.
He was given a lifetime ban from the club.
The material has a very long operational lifetime.
She felt she had lived a lifetime in one day.
The policy provides lifetime coverage.
It is a once-in-a-lifetime opportunity to visit.
The artistic impact lasted a lifetime.
He spent a lifetime perfecting his craft.
The structural lifetime of the reactor is critical.
Her work influenced a lifetime of scholars.
The ephemeral nature of the flower's lifetime is sad.
He faced a lifetime of political struggle.
The investment offers lifetime income.
She documented a lifetime of social change.
The device's functional lifetime is ending.
It was the culmination of a lifetime of effort.
The philosophical implications of a human lifetime are vast.
His legacy will endure beyond his natural lifetime.
The systemic failure shortened the machine's lifetime.
She experienced a lifetime of trauma in mere months.
The contract includes a lifetime pension.
The historical scope covers a lifetime of events.
He sought to capture a lifetime in a single painting.
The inherent limitations of a biological lifetime are clear.
Colocaciones comunes
Idioms & Expressions
"Once in a lifetime"
Very rare
This is a once in a lifetime offer.
neutral"Last a lifetime"
Very durable
This friendship will last a lifetime.
neutral"Lifetime achievement"
Career recognition
He got a lifetime achievement award.
formal"In a lifetime"
During one's life
It's the best I've seen in a lifetime.
neutral"Spend a lifetime"
Dedicate many years
He spent a lifetime writing that book.
neutral"Lifetime of memories"
Many experiences
We built a lifetime of memories.
neutralEasily Confused
Both refer to time
Lifespan is biological/technical
The lifespan of a fly.
Root word
Life is the state, lifetime is the duration
Life is beautiful.
Part of the word
Time is general, lifetime is specific
What time is it?
Similar root
Lifelong is an adjective
A lifelong friend.
Sentence Patterns
Subject + has + a + lifetime + of + noun
She has a lifetime of experience.
It + is + a + once-in-a-lifetime + noun
It is a once-in-a-lifetime opportunity.
Subject + will + last + a + lifetime
This will last a lifetime.
In + my + lifetime
In my lifetime, I have seen much.
Spend + a + lifetime + doing
He spent a lifetime doing research.
Familia de palabras
Nouns
Adjectives
Relacionado
How to Use It
8
Formality Scale
Errores comunes
A person only has one life.
It is one compound word.
Lifespan is better for machines.
Needs a possessive pronoun.
It acts as one adjective.
Tips
Memory Palace
Imagine your life as a long road; the length of that road is your lifetime.
Native Usage
Use it when talking about big goals or long-lasting products.
Cultural Insight
Advertisers use it to build trust.
Grammar Shortcut
It is a countable noun.
Say It Right
Focus on the 'f' and 't' sounds.
Don't Make This Mistake
Don't write 'life time' with a space.
Did You Know?
It comes from Old English.
Study Smart
Use it in a sentence about your own goals.
Memorize It
Mnemonic
Life + Time = The time you have in life.
Visual Association
A clock that starts at birth and ends at death.
Word Web
Desafío
Write down three things you want to do in your lifetime.
Origen de la palabra
Germanic
Original meaning: The time of life
Contexto cultural
None
Often used in advertising to suggest quality (e.g., lifetime guarantee).
Practice in Real Life
Real-World Contexts
Business
- Lifetime warranty
- Lifetime value
- Lifetime membership
Personal
- Once in a lifetime
- Lifetime of memories
- In my lifetime
Academic
- Operational lifetime
- Lifetime achievement
- Average lifetime
Travel
- Lifetime experience
- Once in a lifetime trip
Conversation Starters
"What is one thing you want to do in your lifetime?"
"Do you believe in once-in-a-lifetime opportunities?"
"What is the longest-lasting item in your home?"
"How has the world changed in your lifetime?"
"Would you want a lifetime guarantee on everything you buy?"
Journal Prompts
Describe a once-in-a-lifetime experience you had.
What are your goals for your lifetime?
How would you define a successful lifetime?
If you could have a lifetime supply of something, what would it be?
Preguntas frecuentes
8 preguntasYes, always write it as one word.
Yes, for plural instances.
It is neutral and used in all settings.
Lifelong.
Very similar, but lifespan is more biological.
Life-time.
Yes, you can talk about the car's lifetime.
No, it is only a noun.
Ponte a prueba
I want to travel in my ___.
Lifetime refers to the whole life.
What does lifetime mean?
It is the duration of life.
A machine can have a lifetime.
Objects have operational lifetimes.
Word
Significado
Matching the word to its definition.
Correct sentence structure.
Puntuación: /5
Summary
A lifetime is the entire stretch of time from beginning to end, whether for a person or a product.
- Refers to the total duration of a life.
- Also used for the lifespan of objects.
- Commonly used in idioms like 'once-in-a-lifetime'.
- Always written as one word.
Memory Palace
Imagine your life as a long road; the length of that road is your lifetime.
Native Usage
Use it when talking about big goals or long-lasting products.
Cultural Insight
Advertisers use it to build trust.
Grammar Shortcut
It is a countable noun.
Ejemplo
He lived in the same house for his entire lifetime.
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