bowl has 8 distinct synonyms spread across 6 of its 12 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 round vessel that is open at the top; used chiefly for holding food or liquids
a concave shape with an open top
Synonyms, antonyms and the broader and narrower relations for bowl come from Princeton University’s WordNet. Full sources and licences.
a dish that is round and open at the top for serving foods
a wooden ball (with flattened sides so that it rolls on a curved course) used in the game of lawn bowling
hurl a cricket ball from one end of the pitch towards the batsman at the other end