/ Thesaurus / S Synonyms of swamp fever Find synonyms for: Noun1. swamp fever, leptospirosis, zoonosis, zoonotic diseaseusage: an infectious disease cause by leptospira and transmitted to humans from domestic animals; characterized by jaundice and feverWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language