/ Thesaurus / F Synonyms of fots Find synonyms for: Noun1. fiber-optic transmission system, fibre-optic transmission system, FOTS, communication system, communication equipmentusage: a communication system using fiber optic cablesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language