Gill
- a gill is usually a narrow valley with steep, rocky sides. The term is derived from Old Norse gil, with the same meaning, and many of the place-names incorporating this term may be Scandinavian coinages. Gill occurs frequently in names across Scotland and especially in the Northern Isles, where Scandinavian influence had a significant impact. Examples include Djupa Gill and Feetnies Gill in Shetland, Fiddlers Gill and Garrion Gill in Lanarkshire, and Jenny Noble's Gill in Langholm, Dumfriesshire.