electricity has 2 distinct synonyms spread across 1 of its 3 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 physical phenomenon associated with stationary or moving electrons and protons
Synonyms, antonyms and the broader and narrower relations for electricity come from Princeton University’s WordNet. Full sources and licences.
energy made available by the flow of electric charge through a conductor
“they built a car that runs on electricity”
keen and shared excitement
“the stage crackled with electricity whenever she was on it”