The definition of an isle is an island, particularly a small one.noun
An example of an isle is one of the tiny islands in the island nation of the Philippine Islands.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
Origin: ME ile < OFr ile, earlier isle < ML isla, contr. < L insula < ? (terra) in salo, (land) in the sea < salum, sea: the form isle became general in the Renaissance, infl. by L insula
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noun Abbr. I.
Origin: Middle English ile, from Old French isle, from Vulgar Latin *īsula, from Latin īnsula.