Canard refers to a false report or story, or to a belief or rumor that isn't true. It can also refer to a kind of airplane as well as to a kind of small airfoil.

// The book unfortunately repeats some of history's oldest canards.

See the entry >

"It's such a canard to think young people don't care about great information. They do. ... [W]e have to start thinking, as media, of where they’re getting it." — Kara Swisher, quoted at The Atlantic, 29 Feb. 2024

In 16th-century France, vendre des canards à moitié was a colorful way of saying "to fool" or "to cheat." The French phrase means, literally, "to half-sell ducks." No one now knows just what was meant by "to half-sell"; the saying was probably based on some story widely known at the time, but the details have not survived. Lost stories aside, the expression led to the use of canard, the French word for "duck," to refer to a hoax or fabrication. English speakers adopted this canard in the mid-1800s. The aeronautical sense of canard, used from the early days of flying, comes from the stubby duck-like appearance of the aircraft.