An island is a geological formation in which a land mass is surrounded by water. Although there is no standard definition, a continent is usually significantly larger than an island.
Islands and peninsulas are common formations on many planets.
See also
- Earth islands
- Atlantis (mythical subcontinent)
- Gravett Island
- Great Britain
- Hawaii (archipelago)
- Iceland
- Ireland
- Japan (archipelago)
- New Zealand (archipelago)
- Sicily
- Three Mile Island
- Vulcan (island)