Merriam-Webster Online Dictionary
establish (verb)transitive verb
1.
to institute (as a law) permanently by enactment or agreement
2.
obsolete - settle
3.
a) to make firm or stable
b) to introduce and cause to grow and multiply - establish grass on pasturelands
4.
a) to bring into existence - found established a republic
b) - bring about effect established friendly relations
5.
a) to put on a firm basis - set up establish his son in business
b) to put into a favorable position
c) to gain full recognition or acceptance of - the role established her as a star
6.
to make (a church) a national or state institution
7.
to put beyond doubt - prove established my innocence
Merriam-Webster Online Thesaurus
establish (verb)1.
to gain full recognition or acceptance of
SYNONIMS:
demonstrate, prove, show, substantiateRELATED WORDS:
attest, authenticate, bear out, document, evidence, support, sustain, uphold; confirm, corroborate, justify, validate, verifyNEAR ANTONYMS:
confute, discredit, invalidate, rebut, refute2.
to show the existence or truth of by evidence
SYNONIMS:
demonstrate, document, establish, substantiate, validateRELATED WORDS:
back (up), buttress, circumstantiate, corroborate; evidence, evince, record, support, uphold, witness; adduce, attest, authenticate, certify, identify; confirm, sustain, verify, vouch; clinch, nail, settle; confess, depose, testifyNEAR ANTONYMS:
challenge, dispute, object; allege, assume, conjecture, guess, presume, surmise, suspect3.
to be responsible for the creation and early operation or use of
SYNONIMS:
begin, constitute, establish, inaugurate, initiate, innovate, institute, introduce, launch, pioneer, plant, set up, startRELATED WORDS:
author, father, originate; conceive, concoct, contrive, cook (up), create, devise, fabricate, invent, make up, manufacture, produce, think (up); construct, put up; develop, enlarge, expand; endow, finance, fund, subsidize; arrange, organize, systematize, systemize; refound, reinitiate, reinstitute, relaunchNEAR ANTONYMS:
abolish, annihilate, annul, nullify; end, finish, halt, stop, terminate; round (off out), wind up, wrap up