By Friday Meaning

If my teacher says the deadline is Friday, what does that mean? 3

It does not mention date or time. It simply says that your G-Project is on Friday.

Does this mean that the project will end on Friday, ie on Friday (Thursday 23:59) or on Friday and we can return it on Friday?

What does this usually mean? He doesn't respond to our emails and will be back soon, hahaha

Chris ... In this context, it means the slowest. Your teacher wants the project to be completed and returned by Friday. Another example is if your doctor says your payment is due before December 1st, you should receive it by December 1st.

What does Friday mean?

By Friday Meaning

On Friday, that means you can send it first, but not after Friday. If he doesn't mention Friday or Friday, let him know Friday before the end of the school day.
Eighth Definition in Longman Dictionary:
8. BE: Beyond or After a Specific Time: Participants should be ready for next Friday.
So Friday means Friday or Friday but not Saa.