examination,
exam, quiz, trial, assessment, check, experiment, investigation, analysis,
assay, scan
tryout,
trial run, trial, test drive, run-through, practice, review
proof,
evidence, sign, criterion, yardstick, acid test, litmus test
trial,
ordeal, hardship, tribulation, torment, difficulty
try,
try out, put to the test, examine, quiz, assess, check, put something through
its paces, experiment with, investigate, analyze, scan