twenty
n.n. the number 20. It comes after nineteen and before twenty-one.
n. the cardinal number equivalent to the product of ten and two.
There are twenty students in the classroom today.
The shop assistant gave me twenty dollars in change after I paid for the groceries.
Although the committee originally requested thirty volunteers, only twenty arrived at the site to begin the restoration work on the historic building.
From Middle English twenty, twenti, from Old English twēntiġ (“twenty”, literally “two tens”), from Proto-Germanic twaintigiwiz, twai tigiwiz, an old compound of twain- (“two”) + -tigaz (“group of ten”), equivalent to two + -ty, or twain + -ty. Cognate with Scots twenty, tuenty (“twenty”), West Frisian tweintich (“twenty”), Dutch twintig (“twenty”), German zwanzig (“twenty”), Danish tyve.
Used as a determiner before a noun or as a noun to represent the number itself.