Below are possible answers for the crossword clue Firm up.
3 letter answer(s) to firm up
SET
(mathematics) an abstract collection of numbers or symbols; "the set of prime numbers is infinite"
(psychology) being temporarily ready to respond in a particular way; "the subjects' set led them to solve problems the familiar way and to overlook the simpler solution"; "his instructions deliberately gave them the wrong set"
(usually followed by `to' or `for') on the point of or strongly disposed; "in no fit state to continue"; "fit to drop"; "laughing fit to burst"; "she was fit to scream"; "primed for a fight"; "we are set to go at any time"
a badger's burrow
a group of things of the same kind that belong together and are so used; "a set of books"; "a set of golf clubs"; "a set of teeth"
a relatively permanent inclination to react in a particular way; "the set of his mind was obvious"
a unit of play in tennis or squash; "they played two sets of tennis after dinner"
adapt for performance in a different way; "set this
Other crossword clues with similar answers to 'Firm up'