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diphthongize

American  
[dif-thawng-ahyz, -gahyz, -thong-, dip-] / ˈdɪf θɔŋˌaɪz, -ˌgaɪz, -θɒŋ-, ˈdɪp- /
especially British, diphthongise

verb (used with object)

diphthongized, diphthongizing

  1. to change into or pronounce as a diphthong.

verb (used without object)

diphthongized, diphthongizing

  1. to become a diphthong.

diphthongize British  
/ ˈdɪp-, -ˌɡaɪz, ˈdɪfθɒŋˌaɪz /

verb

  1. (often passive) to make (a simple vowel) into a diphthong

"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

Other Word Forms

  • diphthongization noun

Etymology

Origin of diphthongize

First recorded in 1865–70; diphthong + -ize

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.