- a group of islands in W Europe: Great Britain, Ireland, the Isle of Man, and adjacent small islands. 120,592 sq. mi. (312,300 sq. km).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a group of islands in W Europe, consisting of Great Britain, Ireland, the Isle of Man, Orkney, Shetland, the Channel Islands belonging to Great Britain, and the islands adjacent to these
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