stake has 15 distinct synonyms spread across 7 of its 10 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.
(law) a right or legal share of something; a financial involvement with something
“they have interests all over the world”
a pole or stake set up to mark something (as the start or end of a race track)
“a pair of posts marked the goal”
instrument of execution consisting of a vertical post that a victim is tied to for burning
a strong wooden or metal post with a point at one end so it can be driven into the ground
put at risk
“I will stake my good reputation for this”
Synonyms, antonyms and the broader and narrower relations for stake come from Princeton University’s WordNet. Full sources and licences.
tie or fasten to a stake
“stake your goat”