the meaning of the sentence

[Unregistered Lina]

Hello

I'd like to know the meaning of the following sentence.

#1) He hasn't done his homework yet.

Can I use #1) when he has started his homework and hasn't finished ?
Or does #1) mean he hasn't started his homework?

Thank you.

[Casiopea]

1) He hasn't done his homework yet.
=> He hasn't started it.
Compare: He didn't do it.

Note, some speakers might use "hasn't done" to mean hasn't completed,

EX: He hasn't done/completed his homework yet.