Vowel team

The "oi" sound — /oi/

As in coin. Tap play to hear the sound, see the mouth shape, and learn 5 words to practice.

coin — keyword picture for the oi sound

Mouth shape

Start round, open to 'ee'

Gesture

Cup hands around mouth saying oi! Oi! Oi!

Example words

  • coin
  • oil
  • join
  • boil
  • soil

How to teach the “oi” sound

  1. Hear it first. Tap Play three times. Have your child watch your mouth while you copy the sound — no letter name yet, just the pure sound /oi/.
  2. Do the gesture. Cup hands around mouth saying oi! Oi! Oi!— kids remember sounds 2× faster when there’s a physical action attached.
  3. Find it in words. Read the 5 example words aloud slowly, stretching the /oi/ sound: “c–o–i–n”.
  4. Spot it around the house. “Can you find something that starts with /oi/?” Aim for 3 wins in a row before stopping.
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ABC Phonics — Sounds for Kids