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View synonyms for

lifetime

[lahyf-tahym]

noun

  1. the time that the life of someone or something continues; the term of a life.

    peace within our lifetime.

  2. Physics.mean life.



adjective

  1. for the duration of a person's life.

    He has a lifetime membership in the organization.

lifetime

/ ˈɪˌٲɪ /

noun

    1. the length of time a person or animal is alive

    2. ( as modifier )

      a lifetime supply

  1. the length of time that something functions, is useful, etc

  2. physics the average time of existence of an unstable or reactive entity, such as a nucleus, excited state, elementary particle, etc; mean life

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of lifetime1

First recorded in 1175–1225, lifetime is from the Middle English word liftime. See life, time
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Example Sentences

Examples have not been reviewed.

“No President in my lifetime has been in a position like yours. Not since Truman in 1945.”

From

But with a few smaller parts and a lifetime of Hollywood adjacency under her belt, Johnson herself was experienced enough to pull off Anastasia’s dolting ignorance.

From

"We will all be drinking water containing TFA every day - so we'll be exposed throughout our lifetime. It's that long-term, low level exposure that is the big concern."

From

The Carers Trust said three in five people would be a carer at some point in their lifetime.

From

Most people are better off waiting at least until their full retirement age to apply, and many will maximize their lifetime benefits by delaying until age 70.

From

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