ACU
Set to 5 different clues across 22 published puzzles, most often “Prefix with puncture” — The New York Times, Thursday, 30 June 2011.
3 letters
Every clue on record, most used first
- Prefix with puncture9 times
The New York Times — Thursday, 30 June 2011
- Prefix with pressure9 times
The New York Times — Sunday, 20 July 2008
- With a needle: Prefix2 times
The New York Times — Friday, 18 October 2002
- Pressure opening?once
The New York Times — Saturday, 30 December 2006
- Pressure prefixonce
The New York Times — Friday, 9 May 2003