What is the meaning of Holm?

Small island, islet.

An island in a lake, river or estuary; an eyot.

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.

Rich flat land near a river, prone to being completely flooded; a river-meadow; bottomland.

The holly.

A common evergreen oak of Europe, Quercus ilex; the holm oak.

a small island

a small island; an islet

ocean, sea, waters

hill

holmium (chemical element, Ho, atomic number 67)

hill

islet

Source: wiktionary.org