Island
An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, such as the Philippines.
Tapere
A Tapere or Sub-District is a low level of traditional land subdivision on five of the Lower Cook Islands (Rarotonga, Mangaia, Aitutaki, Atiu, and Mauke), comparable to the ahupua'a of the main Hawaiian Islands. Among the populated raised islands, only Mitiaro is not subdivided into tapere. The remaining southern Cook Islands, Manuae, Palmerston and Takutea are atolls and/or uninhabited, and therefore not subject to this type of traditional subdivision. The atolls of the northern Cook Islands are subdivided into "motu" (populated atoll islets), instead.