loon.
A crazy or deranged person; a lunatic.
Meaning & usage
A crazy or deranged person; a lunatic.
An idler, a lout.
A boy, a lad.
A harlot; mistress.
A simpleton.
An English soldier of an expeditionary army in Ireland.
A round area of pavement that protrudes from one side of a road to accommodate turning vehicles with a wide turning circle.
Clipping of balloon.
Where this word comes from
From Middle English louen, lowen (“rascal; rogue”), probably of Middle Dutch or Middle Low German origin. Compare Dutch loen (“simpleton”). Or, related to etymology 2, due to the bird's loud cry. Folk etymology associates it slang-wise with lunatic, though the latter may have influenced it; see loony.
Any of various birds, of the order Gaviiformes, of North America and Europe that dive for fish and have a short tail, webbed feet and a yodeling cry.
Where this word comes from
Of North Germanic origin, from Old Norse lómr (“loon”), ultimately imitative of the bird's cry, particularly when it's in danger. Distantly related to lament, probably sharing Proto-Indo-European *leh₂- (expressive root).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.