n. The decade of one's life from age 20 through age 29.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the time of life between 20 and 30
n. the decade from 1920 to 1929
Word Usage
"Maybe not teen motherhood but we live in a culture where – for middle class women certainly – even having children in your twenties is regarded as too young."