WordNet sense 1 (disposed or inclined toward):

willing

WordNet sense 2 (fully prepared or eager):

ripe

WordNet sense 3 (quick in apprehending or reacting):

prompt

WordNet sense 4 ((usually followed by `to' or `for') on the point of or strongly disposed):

fit, set

WordNet sense 5 (made ready or fit or suitable beforehand):

prepared

WordNet sense 6 (prepare for eating by applying heat):

cook, fix, make, prepare

WordNet sense 7 (apprehending and responding with speed and sensitivity):

quick

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