Longman Dictionary of Contemporary English homepage


life‧time [countable usually singular]
1 the period of time during which someone is alive or something exists [↪ lifespan]
during/in somebody's lifetime
During her lifetime she had witnessed two world wars.
It's the sort of opportunity you see only once in a lifetime.

the chance/experience etc of a lifetime

the best opportunity, experience etc that you will ever have:
It was the holiday of a lifetime.

not in this lifetime

spoken not at all [= never]:
'Would you go out with him after he dropped you?' 'Not in this lifetime.'

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