the whole island; entire island
Refers to a single island in its entirety. Common in contexts like island-wide events, surveys, or descriptions.
The whole island lost power due to the typhoon.
An evacuation advisory was issued for the entire island.
all the islands (of a group); every island
Used when referring to every island within a group or archipelago. Often appears in geographical or administrative contexts.
All the islands in this sea area are designated as a national park.
Not all the islands share the same dialect.