0 the period of time during which someone lives or something exists:
We'll see a tremendous lot of technological changes during/in our lifetime.
Winners of the competition will receive the holiday of a lifetime (= the best holiday they will ever have).
I've only been working here two days, but it seems like a lifetime.
Enter our competition and this once-in-a-lifetime experience could be yours!
Marriage is no longer always seen as a lifetime commitment.
You could win a lifetime's supply of toothpaste.
1 the period of time during which someone lives or something exists:
In the past, the majority of women were consigned to a lifetime of servitude and poverty.
The cost of population screening and treatment would not be recovered in reduced dyspepsia costs in the lifetime of those screened.
Subjects were asked to report ' worst lifetime ' symptoms.
In section 6 we discuss a possible refinement of the analysis which provides lifetime information for variables.
