Top, Help, Feedback, Customize Type in a word below to find its rhymes, synonyms, definitions, and more: Word:  Find rhymes Find synonyms Find antonyms Find definition Appears in definition of Find related words Find similar sounding words Find homophones Check spelling of word Match consonants only Match these letters Search in Shakespeare Search for quotations Organize results by: Syllables Letters     Include phrases: Yes No Rhymes   Synonyms   [Definitions]   Homophones   Similar sound   Same consonants   Related Definitions of Gu: noun:   the largest and southernmost island in the Marianas which is administered as a territory of the United States; it was ceded by Spain to the United States in 1898 adjective:   of or related to the genital and urinary organs or their functions name:  A surname (very rare: popularity rank in the U.S.: #21554) Search for Gu at other dictionaries: OneLook, Answers.com, Merriam-Webster Search for Gu:    [Definition]   Quotes   Encyclopedia   Copyright © 2010 Datamuse