Re: what is the difference between TOKEN and COIN

I do not think there is an exact definition and many times the terms get used somewhat interchangeability.

I agree with him. They are used interchangeably. If you're looking for more, I wrote really simple definitions on my website:
https://decryptionary.com/dictionary/token/
https://decryptionary.com/dictionary/coin/

Check it out, I hope it helps