Synonyms for establish
verb
To set up in a formal manner
institute, found, authorize; see organize 2.
To work or settle in a permanent place
set up, install, build, erect, build up, entrench, set, plant, root, place, settle, lodge, settle in, lay the foundation, lay the foundation for, make provisions for, domiciliate, practice, live, ground, ensconce, set on its feet, land.
Antonyms unsettle, uproot, break up.
To determine
ascertain, learn, find out; see discover.
To prove
verify, authenticate, confirm; see prove.
To make secure
fix, secure, stabilize; see fasten 1.
See establish in Webster's New World Roget's A-Z Thesaurus II
verb
To bring into existence formally:
constitute, create, found, institute, organize, originate, set up, start. See startTo place securely in a position or condition:
ensconce, fix, install, seat, settle. See put inTo provide a basis for:
base1, build, found, ground, predicate, rest1, root1, underpin. See overTo put in force or cause to be by legal authority:
constitute, enact, legislate, make, promulgate. See action, make, politicsTo establish as true or genuine:
authenticate, bear out, confirm, corroborate, demonstrate, endorse, evidence, prove, show, substantiate, validate, verify. See show, support
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