/ Thesaurus / A Synonyms of alternating current Find synonyms for: Noun1. alternating current, AC, alternating electric current, electricity, electrical energyusage: an electric current that reverses direction sinusoidally; "In the US most household current is AC at 60 cycles per second"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language