American English
/ˈlaɪfˌtaɪm/
2 syllables · Stress the first syllable.
the whole time that a person is alive, from birth until death
Practice out loudthe whole time that a person is alive, from birth until death
I've never seen a storm like that in my lifetime.
She has collected memories from a lifetime of travel.
in my lifetime · over a lifetime · a lifetime of experience · a lifetime of memories
in + possessive adjective + lifetime
a lifetime of + noun
the whole time that something exists, works, or can be used
The battery has a lifetime of about five years.
This material has a short lifetime in direct sunlight.
battery lifetime · expected lifetime · short lifetime · the lifetime of a product
the lifetime of + noun
have a lifetime of + number + years
lasting for a person's whole life or for as long as something exists
The museum offers a lifetime membership.
He received a lifetime ban from the league.
lifetime membership · lifetime warranty · lifetime ban · lifetime supply
a + lifetime + noun
have + a + lifetime + noun
during all the years of one person's life
I've never seen so much snow in a lifetime.
so rare or special that it may happen only once in a person's life
The trip was a once-in-a-lifetime experience.
an award or recognition for important work done during a person's career
She received a lifetime achievement award.
Write lifetime as one word, not life time.