Isle/aɪl/ Definition 1 of 2Pro Tip 1/3Geographic Entity Used to name specific places, often romantic or exotic. The isle of Capri is famous for its natural beauty. Pro Tip 2/3Not Always Tropical Isles can be found in various climates, not just warm ones. The windswept isle off the Scottish coast was hauntingly beautiful. Pro Tip 3/3Metaphorical Use Sometimes symbolizes isolation or a form of escape. He found solace on his personal isle of tranquility.