1

lifetime

play
noun life·time \ˈlīf-ˌtīm\

Definition of lifetime

  1. 1a :  the duration of the existence of a living being (such as a person or an animal) or a thing (such as a star or a subatomic particle)b :  life 12

  2. 2 :  an amount accumulated or experienced in a lifetime <a lifetime of regrets>

Examples of lifetime in a sentence

  1. a lifetime spent traveling the world

  2. It would have taken me a lifetime to read all those books.

  3. Childhood seems a lifetime ago now!

  4. a chemical with a lifetime of only a few minutes

  5. the lifetime of a planet

13th Century

First Known Use of lifetime

13th century


2

lifetime

adjective life·time

Definition of lifetime

  1. 1 :  lifelong

  2. 2 :  of long duration or continuance <lifetime legislation>

  3. 3 :  measured or achieved over the span of a career <a baseball player's lifetime batting average>

1834

First Known Use of lifetime

1834



LIFETIME Defined for English Language Learners

1

lifetime

play
noun life·time \ˈlīf-ˌtīm\

Definition of lifetime for English Language Learners

  • : the time during which a person is alive

  • : a very long time

  • : the time during which something lasts or is useful


LIFETIME Defined for Kids

lifetime

play
noun life·time \ˈlīf-ˌtīm\

Definition of lifetime for Students

  1. :  life 2



Seen and Heard

What made you want to look up lifetime? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to give authoritative approval to

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ