Question

Difficulty: MediumDiphthongs

Provide a word that correctly completes the sentence by identifying a word containing the specified diphthong sound.

Answer:The diphthong sound /ɔɪ/, which is present in 'boy', is also found in the word 【coin】.

Answer

Any word containing the /ɔɪ/ diphthong, such as 'coin', 'voice', 'choice', 'boil', or 'point', correctly completes the sentence.
The sound /ɔɪ/ is a prominent English diphthong heard in words like 'boy', 'coin', 'voice', 'choice', 'oil', and 'boil'. Providing any word that features this glide correctly satisfies the phonetic requirement.

Step-by-Step Solution

1
Identify the target diphthong sound.
The symbol /ɔɪ/ represents an open-mid back rounded vowel gliding towards a near-close near-front unrounded vowel, as in 'boy' or 'rejoice'.
Understanding the phonetic glide helps isolate words with identical vowel quality.
2
Select a word containing this specific phonetic sound.
Words like 'coin' (/kɔɪn/), 'voice' (/vɔɪs/), or 'boil' (/bɔɪl/) share the exact /ɔɪ/ diphthong.
These words feature the correct sound glide rather than pure monophthongs or other diphthongs.

Key Concept

Identification and phonetic matching of the /ɔɪ/ diphthong in English words
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