A History of Short Words

From the New York Times Crossword Puzzle

DNC

Sun, 15 Jun '25
Donkey grp.
Tue, 29 Apr '25
Blues group, for short?
Sun, 26 Nov '23
Political org. with a quadrennial convention
Thu, 8 Dec '22
Blue grp.
Sun, 10 Apr '22
Left-leaning organizing grp.
Thu, 19 Aug '21
Blues org.?
Fri, 25 Jun '21
Party org.