test has 16 distinct synonyms spread across 8 of its 13 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
show a certain characteristic when tested
“He tested positive for HIV”
achieve a certain score or rating on a test
“She tested high on the LSAT and was admitted to all the good law schools”
determine the presence or properties of (a substance)
trying something to find out about it
“a sample for ten days free trial”
Synonyms, antonyms and the broader and narrower relations for test come from Princeton University’s WordNet. Full sources and licences.
any standardized procedure for measuring sensitivity or memory or intelligence or aptitude or personality etc
“the test was standardized on a large sample of students”
a set of questions or exercises evaluating skill or knowledge
“when the test was stolen the professor had to make a new set of questions”
the act of testing something
“in the experimental trials the amount of carbon was measured separately”
a hard outer covering as of some amoebas and sea urchins