Test yourself using the Listen and Spell test.
In one-syllable words, there are two ways of spelling the /oi/ sound: oi and oy. Use oi in the middle of a word and oy at the end. This list will help you practise spelling the oi sound in a mixture of oi and oy words.
"This is a fantastic opportunity for our students! I'm sure Spellzone will be invaluable in helping them to improve their spellings and therefore improve the quality of their writing in all subject areas!"
Teacher, High School, UK