I . v. a.
1.
Demonstrate, show, manifest, confirm, establish, evidence, evince, substantiate, ascertain, justify, verify, make good.
2.
Try, test, examine, make trial of, assay, put to the test, experiment upon, submit to the test or proof.
3.
Experience, suffer.
II . v. n.
1.
Turn out, be found to be.
2.
Essay, make trial.
3.
Make certain.