What does lifetime mean?
Lifetime means The duration of the life of someone or something..
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/ˈlaɪf.taɪm/ · noun
The duration of the life of someone or something..
a project that will take many human lifetimes to complete
the operational lifetime of an aircraft component
comes with a lifetime warranty
I've been waiting a lifetime for a train.
Use lifetime when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Lifetime means The duration of the life of someone or something..
Common synonyms include lifespan, ages, donkey's years, eternity.
The opposite depends on the specific sense.
a project that will take many human lifetimes to complete
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