the contraction of two vowels into a diphthong or a long vowel

listen to the pronunciation of the contraction of two vowels into a diphthong or a long vowel
İngilizce - İngilizce
synaeresis

An example of synaeresis is the contraction of the -ew (IPA: /uː/) and or- (IPA: /oʊɹ/) of New Orleans into IPA: /nɔːlənz/.

the contraction of two vowels into a diphthong or a long vowel