shunt has 2 distinct synonyms spread across 1 of its 5 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.
a passage by which a bodily fluid (especially blood) is diverted from one channel to another
“an arteriovenus shunt”
a conductor having low resistance in parallel with another device to divert a fraction of the current
Synonyms, antonyms and the broader and narrower relations for shunt come from Princeton University’s WordNet. Full sources and licences.
implant consisting of a tube made of plastic or rubber; for draining fluids within the body