Question

Which of the following is a characteristic of all diphthongs?

• A. They occur only in polysyllabic words
• B. They require nasalization
• C. They are vowel glides within a single syllable
• D. They are stressed in all contexts

Answer 1

Answer:

C. They are vowel glides within a single syllable

Diphthongs are unique in that they involve a movement between two vowel sounds but are still pronounced within one syllable. This is key to differentiating them from sequences of two distinct vowels across syllables.