how old
What's your age?
How old asks about age or duration of existence: How old are you? , How old is this building?
The phrase can express surprise at someone's maturity or immaturity: How old do you think I am?
It also appears in indirect constructions: I don't know how old she is.
- ageDuration of existence
- yearsTwelve-month spans
- birth certificateOfficial record of arrival
- ancientVery old indeed
- golden yearsLater life stage
over the hill · vintage · antique · mature · senior citizen · dated · worn · wrinkled · dusty · faded · timeless · birthday · age gap · generation · aging · youthful · decades · weathered