loon

/lun/
noun
  1. A large waterbird with a distinctive call, found in northern regions.
    • The loon's eerie call echoed across the lake at dusk.
    • Loons are known for their striking black-and-white plumage in summer.
    • We spotted a loon diving for fish in the clear water.
  2. A person who is crazy, silly, or behaves in a strange way (informal).
    • Don't listen to him — he's a complete loon.
    • My uncle is a bit of a loon, but he's harmless.
    • Some loon tried to ride a bicycle through the mall.
What does "loon" mean? | whatsthatwordmean | whatsthatwordmean