[mon-uh f-thawng-ahyz, -gahyz, -thong-]Phonetics
verb (used with object), mon·oph·thong·ized, mon·oph·thong·iz·ing.
to change into or pronounce as a monophthong.
verb (used without object), mon·oph·thong·ized, mon·oph·thong·iz·ing.
to become a monophthong.
The United States of Diversity: Fargo And Its NCVS Don’tcha KnowDoes your keeat sit an the meeat? Or, maybe you wait for the boss down the black? Do you cal your mam an Sundays? If you speak with a Northern Cities Vowel Shift (NCVS) accent you might sound this way, and it has our linguist nerds pushing up their glasses with anticipation.
Also especially British, mon·oph·thong·ise.
Origin of monophthongize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019