/ Thesaurus / R Synonyms of railroad tie Find synonyms for: Noun1. tie, railroad tie, crosstie, sleeper, brace, bracingusage: one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language