gall has 15 distinct synonyms spread across 6 of its 8 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.
an open sore on the back of a horse caused by ill-fitting or badly adjusted saddle
a skin sore caused by chafing
abnormal swelling of plant tissue caused by insects or microorganisms or injury
a feeling of deep and bitter anger and ill-will
a digestive juice secreted by the liver and stored in the gallbladder; aids in the digestion of fats
the trait of being rude and impertinent; inclined to take liberties
Synonyms, antonyms and the broader and narrower relations for gall come from Princeton University’s WordNet. Full sources and licences.