The sound /ᴈ:/ is a very interesting sound. Although it occurs in a number of words in English, not so in many African languages. We can say the sound is alien to Africa. But you can easily spot the sound by the way it is spelt. It can be spelt ‘ir’, ‘or’, ‘ur’, ‘our’, and on. Here is a quiz to test if you can identify the /ᴈ:/ sound in words.