What does Rayyan mean?
From the triliteral root r-w-y (ر-و-ي, 'to be quenched with water, irrigated'), meaning 'luxuriant, well-watered, lush'. Ar-Rayyan is also the name of one of the gates of Paradise through which those who fasted are said to enter, which drives much of the name's popularity.
What does Ismail mean?
The Arabic form of the prophet Ishmael (Isma'il), of Hebrew origin (Yishma'el, 'God will hear' or 'God hears'). The Arabic form does not derive from a native Arabic root; Ismail is the son of Ibrahim in Islamic tradition. Also spelled Ismael, Ismaeel.