- starch resembling sago that is obtained from cuckoopint root
- any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe
- Arum is a genus of about 25 species of flowering plants in the family Araceae, native to Europe, northern Africa, and western Asia, with the highest species diversity in the Mediterranean region.
- Årum is a village in the north-eastern part of Fredrikstad municipality, Norway.
- n. - large-spathed plant, called 'cuckoo-pint' or 'lords and ladies'. arum lily, calla lily.