Filed from 5 published puzzles

FLEETS

Set to 4 different clues across 5 published puzzles, most often “Armadas” — The New York Times, Monday, 20 September 2004.

6 letters

Every clue on record, most used first

Armadas2 times
The New York Times — Monday, 20 September 2004
Forces in the wateronce
The New York Times — Sunday, 9 December 2007
Companies' trucksonce
The New York Times — Saturday, 23 March 1996
Argosiesonce
The New York Times — Thursday, 8 February 1996