(nonstandard) A fractional part of twenty-one, a twenty-first

In the twenty-first place; twenty-first in a row.

plural of twenty-niner

A mountain bike with wheels of approximately 29 inches in diameter.

plural of twenty-oneth

plural of twenty-fourmo

Synonym of twentysomething

Alternative form of 420

Alternative form of 420

A spoken parlour game in which one player chooses an object or concept and the others have twenty yes-no questions to identify what it is.