Look up 21st in Wiktionary, the free dictionary.
21st is the ordinal form of the number 21. Twenty-first or 21st may also refer to:
- A fraction, 1⁄21, equal to one of 21 equal parts
- 21st of the month, a recurring calendar date
- 21st birthday, the age of majority in a several countries
Geography
edit- 21st meridian east, a line of longitude
- 21st meridian west, a line of longitude
- 21st parallel north, a circle of latitude
- 21st parallel south, a circle of latitude
- 21st Avenue
- 21st Street (disambiguation)
Military
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editSee also
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This disambiguation page lists articles associated with the same ordinal.
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