21st

(redirected from 21 (number))
Also found in: Thesaurus, Encyclopedia, Wikipedia.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.21st - coming next after the twentieth in position21st - coming next after the twentieth in position
ordinal - being or denoting a numerical order in a series; "ordinal numbers"; "held an ordinal rank of seventh"