[luːn], (Noun)

Definitions:
- a silly or foolish person
(e.g: if only she weren't such a lovesick loon)


Phrases:

Origin:
late 19th century: from loon (referring to the bird's actions when escaping from danger), perhaps influenced by loony

[luːn], (Noun)

Definitions:
- a large diving waterbird with a sleek black or grey head, a straight pointed bill, and short legs set far back under the body; a diver


Phrases:

Origin:
mid 17th century: probably by alteration of Shetland dialect loom, denoting especially a guillemot or a diver, from Old Norse

[luːn], (Verb)

Definitions:
- act in a foolish or desultory way
(e.g: he decided to loon around London)


Phrases:

Origin:
1960s: of unknown origin