noun / verb
toot
TOOT/tˈut/
A short sound from a horn or whistle, or making that sound.
One quick squeeze produces a short toot from the bulb horn.

Etymology
Toot originated in imitation of sound rather than from roots naming an action or object. Its early use already described the characteristic sound of a blown horn.
More examples
- Two short toots from the whistle signal the game's start.
- I toot the horn when I pull into the driveway.
- The tugboat tooted as it passed the dock.
Forms
toot · toots · tooted · tooting