B (島) 岛 dao3 
island 
Insel C (島嶼) 岛屿 dao3yu3
islands and islets
Inseln C (群島) 群岛 qun2dao3
group of scattered islands/ archipelago
Inselgruppe, Archipel
Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
群 群 (same as 7FA3 羣) group, crowd, multitude, mob
島 岛 island
from CC-CEDICT under a Creative Commons Attribution-Share Alike 3.0 License
C (群島) 群岛 qun2dao3 group of scattered islands/ archipelago Inselgruppe, Archipel Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.
群 群 (same as 7FA3 羣) group, crowd, multitude, mob 島 岛 island from CC-CEDICT under a Creative Commons Attribution-Share Alike 3.0 License