an island off the W coast of Scotland, in the Inner Hebrides: site of St Columba's monastery (founded in 563) and an important early centre of Christianity. Area: 854 ha (2112 acres) 
WordReference Random House Unabridged Dictionary of American English © 2025
I•o•na 
(ī ō′nə),USA pronunciation n. 
- Place Namesan island in the Hebrides, off the W coast of Scotland: center of early Celtic Christianity.
 
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