noun
the whole island; entire island
Refers to a single island in its entirety. Common in contexts like island-wide events, surveys, or descriptions.
台風で全島が停電した。
The whole island lost power due to the typhoon.
全島に避難勧告が出された。
An evacuation advisory was issued for the entire island.
noun
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.
この海域の全島が国立公園に指定されている。
All the islands in this sea area are designated as a national park.
全島で同じ方言が話されているわけではない。
Not all the islands share the same dialect.