induction has 9 distinct synonyms spread across 5 of its 6 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 formal entry into an organization or position or office
“his initiation into the club”
an electrical phenomenon whereby an electromotive force (EMF) is generated in a closed circuit by a change in the flow of current
reasoning from detailed facts to general principles
stimulation that calls up (draws forth) a particular class of behaviors
“the elicitation of his testimony was not easy”
the act of bringing about something (especially at an early time)
“the induction of an anesthetic state”
an act that sets in motion some course of events
Synonyms, antonyms and the broader and narrower relations for induction come from Princeton University’s WordNet. Full sources and licences.