STEEPEN

Set to 6 different clues across 6 published puzzles, most often “Increase in verticality” — The New York Times, Monday, 5 June 2006.

7 letters

Every clue on record, most used first

Increase in verticalityonce
The New York Times — Monday, 5 June 2006
Raise, as pricesonce
The New York Times — Sunday, 3 November 2002
Increase, as an inclineonce
The New York Times — Friday, 18 October 2002
Make more precipitousonce
The New York Times — Sunday, 24 May 1998
Increase the slope ofonce
The New York Times — Sunday, 8 March 1998
Increase the angle of elevationonce
The New York Times — Wednesday, 9 February 1994