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definitions

diphthongize

[ dif-thawng-ahyz, -gahyz, -thong-, dip- ]
/ ˈdɪf θɔŋˌaɪz, -ˌgaɪz, -θɒŋ-, ˈdɪp- /
Phonetics

verb (used with object), diph·thong·ized, diph·thong·iz·ing.

to change into or pronounce as a diphthong.

verb (used without object), diph·thong·ized, diph·thong·iz·ing.

to become a diphthong.

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Nearby words

  1. diphtheritic,
  2. diphtheritic membrane,
  3. diphtheroid,
  4. diphthong,
  5. diphthongia,
  6. diphycercal,
  7. diphyletic,
  8. diphyllobothriasis,
  9. diphyllobothrium,
  10. diphyllous
Also especially British, diph·thong·ise.

Origin of diphthongize

First recorded in 1865–70; diphthong + -ize
Related formsdiph·thong·i·za·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for diphthongize

diphthongize

diphthongise

/ (ˈdɪfθɒŋˌaɪz, -ˌɡaɪz, ˈdɪp-) /

verb

(often passive) to make (a simple vowel) into a diphthong
Derived Formsdiphthongization or diphthongisation, noun
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