noun
loon
LOON
noun
1
A diving water bird known for its haunting, wailing call, found in North America and northern Europe.
"The eerie call of a loon echoed across the lake at dusk."
2
An informal word for a foolish or crazy person.
"He's acting like a total loon today."
How to Use Loon
Learner’s notesIn plain EnglishEither the diving bird with the wailing call, or an informal term for someone acting crazy.
Easily confused with
Word Forms
loons plural
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The eerie call of a _____ echoed across the lake at dusk.
Etymology
From Old Norse lómr, likely imitating the bird's distinctive cry.