Which Bantu language, widely spoken in East Africa, is noted for its significant number of loanwords from Arabic?

Swahili (Kiswahili)

Swahili developed as a lingua franca for trade along the East African coast, blending Bantu grammar with a vocabulary heavily influenced by centuries of contact with Arab traders. The name "Swahili" itself is derived from the Arabic word sawāḥil, which means "coasts."