'Island' in the Bible

I John, your brother, and a sharer with you in the sorrows and Kingship and patient endurance of Jesus, found myself in the island of Patmos, on account of the Word of God and the truth told us by Jesus.

The sky too passed away, as if a scroll were being rolled up, and every mountain and island was removed from its place.

Every island fled away, and there was not a mountain anywhere to be seen.