/ Thesaurus / N Synonyms of navigational instrument Find synonyms for: Noun1. navigational instrument, instrumentusage: an instrument used for navigatingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: anecdote Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language