Báyò lo sí Ìbàdàn, “Ibadan” je oro

“Ibadan” is a place name, which makes it a noun in Yoruba. All place names are nouns.

Adjectives, conjunctions, and prepositions are not naming words. “Ibadan” specifically identifies a location.

Proper nouns name specific people, places, or things. They help us identify exact locations or individuals.