trigraph [trahy-graf, -grahf] EXAMPLES|WORD ORIGIN noun a group of three letters representing a single speech sound, as eau in beau. Liberaldictionary.com
Origin of trigraph First recorded in 1830–40; tri- + -graph Related formstri·graph·ic [trahy-graf-ik] /traɪˈgræf ɪk/, adjective Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 Examples from the Web for trigraph Historical Examples of trigraph
Trigraph, trī′graf, n. a combination of three letters sounded as one, a triphthong.
British Dictionary definitions for trigraph trigraph noun a combination of three letters used to represent a single speech sound or phoneme, such as eau in French beau Derived Formstrigraphic (traɪˈɡræfɪk), adjective Collins English Dictionary – Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012