Word.ws English Dictionary

21st

21st is the abbreviation of twenty-first.

Meaning of twenty-first

Adjective

twenty-first (not comparable)

  1. The ordinal form of the number twenty-one.

See all 4 meanings of twenty-first

Phrases with 21st

Questions about 21st

What is 21st the abbreviation of?
21st is the abbreviation of twenty-first.

Words near 21st in the dictionary

  1. 21700
  2. 21700s
  3. 2170s
  4. 2180s
  5. 2190s
  6. 21st
  7. 21st CCLC
  8. 22
  9. 22-degree halo
  10. 22-gon
  11. 22-gons

Source and license

Adapted from Wiktionary: 21st (page history and authors); twenty-first (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “21st.” Word.ws, https://word.ws/21st. Based on Wiktionary, CC BY-SA 4.0.