Meaning of the word lifespan in English

What does lifespan mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lifespan

US /ˈlaɪf.spæn/
UK /ˈlaɪf.spæn/

Noun

1.

the length of time for which a person, animal, or thing exists:

Example:
The average human lifespan in the developed countries has increased over the last hundred years.
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