A Holm

1. An island in a lake, river or estuary; an eyot.
2. (dialect, chiefly West Yorkshire, Scotland, Orkney) Any small island, but especially one near a larger island or the mainland, sometimes with holly bushes; an islet. Often the word is used in Norse-influenced place-names. See also holme.
3. Rich flat land near a river, prone to being completely flooded; a river-meadow; bottomland.