twenty · number
(be) in your twenties/20s
B2 to be aged between 20 and 29
Dictionary examples:
Most of the staff are in their twenties. (27.9)
the twenties/'20s
B2 the years 1920 through 1929
Dictionary examples:
I love the fashions of the twenties. (20.8)
twenty
A1 the number 20
Dictionary examples:
I have twenty excuses for being late! (0.0)
I ate twenty pizzas yesterday! (0.0)
Twenty cats ate my homework! (0.0)
nineteen, twenty, twenty-one (4.6)
space for twenty people (19.8)