establish

Synonyms: authorize base build constitute create decree domiciliate enact endow ensconce entrench erect fix form found ground implant inaugurate inculcate install institute land lay foundation live lodge moor originate place plant practice provide put ring in rivet root secure set down settle stabilize start start ball rolling station stick

Antonyms: destroy disestablish invalidate ruin unsettle

Synonyms: ascertain authorize base certify circumstantiate confirm constitute corroborate decree determine discover enact find out formulate learn legislate make make out predicate prescribe prove ratify rest show stay substantiate validate verify

Antonyms: confuse disprove invalidate