Another word for prove
justify, substantiate, authenticate, corroborate, testify, explain, attest, show, warrant, uphold, determine, settle, fix, certify, back, sustain, validate, bear out, affirm, confirm, make evident, convince, evidence, be evidence of, witness, declare, testify, betoken, have a case, manifest, demonstrate, document, establish, settle once and for all, (just) go to show*; see also verify.
Another word for proveverb
To establish as true or genuine:authenticate, bear out, confirm, corroborate, demonstrate, endorse, establish, evidence, show, substantiate, validate, verify. See show, support
To subject to a procedure that ascertains effectiveness, value, proper function, or other quality:assay, check, essay, examine, test, try, try out. Idioms: bring to the test, make trial of, put to the proof (or test). See investigate
To participate in or partake of personally:experience, feel, go through, have, know, meet1 (with), see, suffer, taste (of), undergo. Idiom: run up against. See participate