Student or Learner
-"He's no friend of mine".Why is "no " used here?
-What does this sentence mean:"It takes a nation of millions to hold us back".What structure is used?
You could think of it as: "He is no [kind of] friend of mine".
Consider this conversation:
A: I thought C was a doctor.
B: C is not a doctor. (a straightforward assertion that C isn't a doctor)
B: C is no doctor. (He is certainly not a doctor! Nor is he a dentist, nor a vet. In fact he has had no medical training at all. He's a complete fake.)