Filed from 3 published puzzles

SYMBOL

Set to 3 different clues across 3 published puzzles, most often “Sign” — The New York Times, Thursday, 22 February 2007.

6 letters

Every clue on record, most used first

Signonce
The New York Times — Thursday, 22 February 2007
$, #, % or &once
The New York Times — Wednesday, 17 February 1999
#, & or %once
The New York Times — Wednesday, 21 September 1994

Other answers to these clues

ARROW5 letters
ELSE4 letters
EMOTICON8 letters
ENDORSE7 letters
EQUAL5 letters
INK3 letters
ITSA4 letters
OMEN4 letters
PLACARD7 letters
POLE4 letters
WORDOFCHOICE12 letters