age difference; disparity in age; age gap
(appropriate for) one's age
age range; age-group; age bracket
of the same age; age-matched
age of majority; age of adulthood
young (e.g. young children); of few years
estimated (probable) age (e.g. of victim)
age at marriage; age at which one marries
age (expressed in the Western style of counting fully completed years)
minimum age (e.g. employment)
age discrimination; agism
lying about one's age; age fabrication
productive age; working age
susceptible age (for a disease, condition, etc.); common age
biological age of the body (based on fitness metrics); body age
biological age of the body (based on fitness metrics); body age
age of majority; age of adulthood
unknown age; uncertain age; unidentified age
relevant age group; target age; age group concerned
skin showing signs of old age (e.g. wrinkles); ageing skin
lying about one's age; misrepresentation of age