Kí ni orúkọ tí a kọ́ mọ́ ibi tàbí ẹni kan?

In Yoruba grammar, names fall into different categories depending on how they function. A name that is attached specifically to one particular person, place, or thing, distinguishing it from every other member of its class, is called a proper noun, or orúkọ àtọ̀kànwá in Yoruba, meaning a name that "points directly" at a specific referent.

This matches the question precisely, since it asks for the name given to identify one particular place or one particular person, which is exactly what a proper noun does.

The other terms describe different categories entirely, such as a descriptive or explanatory name, or an insulting name, none of which refer to the grammatical function of uniquely identifying a specific referent. When a Yoruba grammar question asks about naming a specific entity, the key clue is the word "specific" or "particular", which should point directly to orúkọ àtọ̀kànwá.