Which THREE of the following words contain diphthongs?

Rationale

Boy, Buy, and Coin contain diphthongs.

Diphthongs are complex vowel sounds that begin with one vowel sound and glide into another within the same syllable. The words "Boy," "Buy," and "Coin" each include such sounds, making them examples of diphthongs.

A (Boy) CORRECT

The word "Boy" features the diphthong /ɔɪ/, which starts with the vowel sound /ɔ/ and transitions into /ɪ/. This combination creates a single syllable with a smooth vowel glide characteristic of diphthongs.

B (Mother) YOUR ANSWER

"Mother" contains the vowel sound /ʌ/, which is a monophthong, meaning it consists of a single, unchanging vowel sound. There is no glide involved, thus it does not qualify as a diphthong.

C (Buy) CORRECT

In "Buy," there is a diphthong represented by the sound /aɪ/. This sound begins with /a/ and shifts to /ɪ/, fulfilling the criteria for a diphthong as it encompasses a smooth transition between vowel sounds in one syllable.

D (Apple) YOUR ANSWER

The word "Apple" features the vowel sound /æ/, which is also a monophthong. It does not include a glide between vowel sounds, therefore it does not meet the definition of a diphthong.

E (Coin) CORRECT

"Coin" contains the diphthong /ɔɪ/, similar to "Boy," where the sound starts with /ɔ/ and glides to /ɪ/. This characteristic confirms it as another example of a diphthong.

Conclusion

Diphthongs are defined by their unique sound transitions within a syllable, and in this case, "Boy," "Buy," and "Coin" exemplify this feature. The other options, "Mother" and "Apple," consist of monophthongs, lacking the glide required to be classified as diphthongs. Understanding these distinctions is essential for grasping phonetic elements in language.

Which THREE of the following words contain diphthongs?

Boy, Buy, and Coin contain diphthongs.

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