Definition of Western Isles
1 or Scottish Eilean Siar play \ˈe-lən-ˈshē(-ə)r\ the Outer Hebrides, constituting an administrative area of W Scotland ∗ Stornoway area 1120 square miles (2912 square kilometers), pop 29,410
2 —used unofficially of the entire Hebrides group
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Britannica.com: Encyclopedia article about "Western Isles"
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