/ Dictionary / Index T tonga: Meaning and Definition of Find definitions for: ton•ga Pronunciation: (tong'gu), [key] — n. a light, two-wheeled, horse-drawn vehicle used in India. Ton•ga Pronunciation: (tong'gu), [key] — n. a Polynesian kingdom consisting of three groups of islands in the S Pacific, NE of New Zealand: a former British protectorate. 100,105; ab. 270 sq. mi. (700 sq. km).Cap.:Nukualofa. Also called Ton&prim;ga Is&prim;lands, Friendly Islands. Ton•ga Pronunciation: (tong'gu), [key] — n. Tsonga. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tonga (Thesaurus) tong Tongan Related Content Daily Word Quiz: sylvan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language