Filed from 4 published puzzles

RATIFY

Set to 3 different clues across 4 published puzzles, most often “Approve” — The New York Times, Sunday, 30 June 2002.

6 letters

Every clue on record, most used first

Approve2 times
The New York Times — Sunday, 30 June 2002
Confirm with a voteonce
The New York Times — Monday, 13 June 2005
Formally approveonce
The New York Times — Thursday, 15 August 2002

Other answers to these clues

AGREEON7 letters
BLESS5 letters
ENACT5 letters
OKAY4 letters
SANCTION8 letters