Zero

NIL3 lettersrecorded 15 times for this clue

The New York Times, Sunday, 6 February 2011, set by David J. Kahn — HIGH SCHOOL REUNION.

Also in 14 further puzzles in The New York Times, 1994–2010.

NONE4 lettersrecorded 13 times for this clue

The New York Times, Sunday, 28 November 2010, set by Jeremy Newton — A SHINING MOMENT.

Also in 12 further puzzles in The New York Times, 1995–2010.

NULL4 lettersrecorded 5 times for this clue

The New York Times, Wednesday, 1 July 2009, set by David J. Kahn.

Also in 4 further puzzles in The New York Times, 1994–2004.

INON4 lettersrecorded 3 times for this clue

The New York Times, Thursday, 10 September 2009, set by Kevan Choset.

Also in 2 further puzzles in The New York Times, 2006–2008.

NOTONE6 lettersrecorded 3 times for this clue

The New York Times, Tuesday, 8 December 2009, set by Joe Krozel.

Also in 2 further puzzles in The New York Times, 1999–2003.

AUGHT5 lettersrecorded 3 times for this clue

The New York Times, Wednesday, 1 July 2009, set by David J. Kahn.

Also in 2 further puzzles in The New York Times, 1994.

NOTAONE7 lettersrecorded 2 times for this clue

The New York Times, Sunday, 19 December 2010, set by Kevin G. Der — HOPE FOR CLEAR SKIES.

Also in 1 further puzzle in The New York Times, 2005.

NADA4 lettersrecorded once for this clue

The New York Times, Tuesday, 5 May 2009, set by Trip Payne.

RESET5 lettersrecorded once for this clue

The New York Times, Saturday, 28 November 2009, set by Karen M. Tracey.

LOVE4 lettersrecorded once for this clue

The New York Times, Sunday, 21 May 2006, set by Ashish Madhukar Vengsarkar — SPELLBOUND.

CIPHER6 lettersrecorded once for this clue

The New York Times, Saturday, 31 August 1996, set by Glenton Petgrave.

NONEATALL9 lettersrecorded once for this clue

The New York Times, Friday, 30 July 2004, set by Manny Nosowsky.