/ Thesaurus / T Synonyms of tennis elbow Find synonyms for: Noun1. tennis elbow, lateral epicondylitis, lateral humeral epicondylitis, tendinitis, tendonitis, tenonitis, epicondylitisusage: painful inflammation of the tendon at the outer border of the elbow resulting from overuse of lower arm muscles (as in twisting of the hand)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language