Choose the word that contains the sound represented by the given phonetic symbol /ɔɪ/

Analyze the question: You are asked to find the word that contains the diphthong /ɔɪ/. This is the sound in words like "boy" and "toy".

Explain the concept: /ɔɪ/ is a diphthong, which means a glide from one vowel sound to another. It starts with the rounded "aw" sound /ɔ/ and glides to /ɪ/. It is usually spelled oi or oy, as in boil, join, enjoy, toy.

Solution: check each option

• A. stock is /stɒk/. The vowel is the short /ɒ/. ✗
• B. roam is /rəʊm/. The vowel is the diphthong /əʊ/. ✗
• C. coin is /kɔɪn/. The "oi" spelling gives the diphthong /ɔɪ/. ✓
• D. note is /nəʊt/. The vowel is the diphthong /əʊ/. ✗

Only coin has the /ɔɪ/ sound.

Tip: In phonetics questions, spelling can guide you. "oi" and "oy" nearly always give /ɔɪ/ (coin, soil, boy, royal). Watch out for "o + consonant + e" words like note and roam, because they give /əʊ/, which is a different diphthong.