Twentieth

a.	1.	Next in order after the nineteenth; tenth after the tenth; coming after nineteen others; - the ordinal of twenty.
	2.	Constituting, or being, one of twenty equal parts into which anything is divided.
n.	1.	The next in order after the nineteenth; one coming after nineteen others.
	2.	The quotient of a unit divided by twenty; one of twenty equal parts of one whole.

Noun	1.	twentieth - position 20 in a countable series of things
Adj.	1.	twentieth - coming next after the nineteenth in position Synonyms: 20th

20th, ordinal