What is the meaning of differentiate?
1 : to recognize or give expression to a difference difficult to differentiate between the two. 2 : to become distinct or different in character.
How do you speak differentiates?
Is it pronounce or Pronunciate?
The correct verb in English is pronounce, not pronunciate. An articulate and well-educated fluent English speaker who used pronunciate as a verb might be assumed to be making a joke.