Short "oi" sound:
* boy
* toy
* coin
* join
* moist
* noise
* point
* spoil
* voice
Other words with a similar vowel sound but spelled differently:
* avoid (long "oi" sound)
* choice (long "oi" sound)
* deploy (long "oi" sound)
* enjoy (long "oi" sound)
* employ (long "oi" sound)
* loyal (long "oi" sound)
It's important to note that the vowel sound in "oil" can be slightly different depending on the accent or dialect.