WordNet sense 1 (informal terms for a difficult situation):

hole, jam, mess, muddle, pickle, kettle of fish

WordNet sense 2 (prepare for eating by applying heat):

cook, make, prepare, ready

WordNet sense 3 (put (something somewhere) firmly):

deposit, posit, situate

WordNet sense 4 (cause to be firmly attached):

fasten, secure

WordNet sense 5 (take vengeance on or get even):

get, pay back, pay off

WordNet sense 6 (decide upon or fix definitely):

determine, limit, set, specify

WordNet sense 7 (make fixed, stable or stationary):

fixate

WordNet sense 8 (make ready or suitable or equip in advance for a particular purpose or for some use, event, etc):

set up, gear up

WordNet sense 9 (the act of putting something in working order again):

fixture, mend, mending, repair, reparation, fixing, repair

WordNet sense 10 (restore by replacing a part or putting together what is torn or broken):

bushel, doctor, restore, restore, touch on, furbish up

WordNet sense 11 (a determination of the place where something is):

localization, location, localisation, locating

WordNet sense 12 (make infertile):

sterilize, desex, desexualise, desexualize, sterilise, unsex