I. ˈtwentēə̇th, -ntiə̇th, in rapid speech sometimes -wənē- or -ni- adjective
Etymology: Middle English twentithe, from Old English twentigotha, from twentig twenty + -otha -th
1. : being number 20 in a countable series
the twentieth day
— see number table
2. : being one of 20 equal parts into which something is divisible
a twentieth share of the money
II. noun
( -s )
1. : number 20 in a countable series
the twentieth of the month
2. : the quotient of a unit divided by 20 : one of 20 equal parts of something
one twentieth of the total