/ Thesaurus / R Synonyms of rhumb line Find synonyms for: Noun1. rhumb line, rhumb, loxodrome, lineusage: a line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass directionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language