lifespan

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life|span /l'aɪfspæn/ (lifespans)
also life span
1 [N-VAR] oft with poss
The lifespan of a person, animal, or plant is the period of time for which they live or are normally expected to live.
A 15-year lifespan is not uncommon for a dog...
2 [N-COUNT] oft with poss
The lifespan of a product, organization, or idea is the period of time for which it is expected to work properly or to last.
Most boilers have a lifespan of 15 to 20 years.

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abreast

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ablaze

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allowance

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