A pair of archipelagos off the north coast of mainland Scotland, comprising Orkney and Shetland.

A large island in the Hauraki Gulf off the coast of the North Island, New Zealand. The smaller Little Barrier Island is to the west of it.

The variety or varieties of Nahuatl spoken in the Isthmus of Tehuantepec.

A census-designated place in Contra Costa County, California, United States.

(chemistry) A region of the chart of nuclides that contains isotopes with a non-standard ordering of single particle levels in the nuclear shell model.

plural of island of inversion

An island in Colchester borough, Essex, England, in the estuary of the Rivers Blackwater and Colne (OS grid ref TM01).

simple past tense and past participle of self-isolate

(epidemiology) To quarantine or isolate oneself from others, especially in order to avoid spreading a communicable disease.

(chiefly epidemiology) Voluntary isolation from others, especially in order to avoid spreading a communicable disease.