noun

1. the time that a person or a thing has existed since birth or beginning
2. usual or expected life span the age of a medieval peasant was quite short
3. a stage of life she is at the awkward age
4. the condition of being old; old age wearied with age
5. a generation
6. 1. any interval of geologic time; specif., a subdivision of an epoch corresponding to the rock strata of a stage ()
   2. any prehistoric cultural period in human development the Stone Age
   3. a period characterized by some person or by some outstanding feature or influence the Elizabethan Age, the Space Age
7. Informal a long time

Etymology: ME < OFr aage < ML *aetaticum < L aetas, contr. < aevitas, akin to aevum, age, eternity < IE base *aiw- > aye

intransitive verb aged, aging ag′·ing or ageing age′·ing

1. to grow old or show signs of growing old
2. to ripen or become mature

transitive verb

1. to make, or make seem, old or mature
2. to cause to ripen or become mature over a period of time under fixed conditions to age cheese