Antonyms for Contract (opposite meaning)
WordNet sense 1 (extend in one or more directions):
expandWordNet sense 2 (add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing):
dilate, enlargeWordNet sense 3 (become broader or wider or more extensive):
widenWordNet sense 4 (become longer by being stretched and pulled):
stretchFrom the ODE community, based on WordNetadd/edit