TWENTIETH
twentieth, th
(adjective) coming next after the nineteenth in position
twentieth
(noun) position 20 in a countable series of things
Source: WordNet® 3.1
Etymology
Adjective
twentieth (not comparable)
The ordinal form of the number twenty.
Abbreviations
• 20th, 20th; (in names of monarchs and popes) XX
Noun
twentieth (plural twentieths)
A person or thing in the twentieth position.
One of twenty equal parts of a whole.
Source: Wiktionary
Twen"ti*eth, a. Etym: [From Twenty; cf. AS. twentigo. See Twenty.]
1. Next in order after the nineteenth; tenth after the tenth; coming
after nineteen others; -- the ordinal of twenty.
2. Consisting, or being, one of twenty equal parts into which
anything is divided.
Twen"ti*eth, n.
1. The next in order after the nineteen; one coming after nineteen
others.
2. The quotient of a unit divided by twenty; one of twenty equal
parts of one whole.
Source: Webster’s Unabridged Dictionary 1913 Edition