whistle is on the Basic English 850 List.
whip - whistle - white

Pronunciation

change

Singular
whistle

Plural
whistles

 
Whistles
  1. A whistle is a sound like music. A person makes a whistling sound by blowing air when the person's mouth is in a little circle.
    The whistle of the wind in trees was low and sad.
  2. A whistle is a little instrument made of wood, metal or other material. A person puts the instrument in the person's mouth and blows air to make a loud whistling sound.
    When you are in danger, blow your whistle loudly and someone will run and help you.

Plain form
whistle

Third-person singular
whistles

Past tense
whistled

Past participle
whistled

Present participle
whistling

  1. To whistle is to make a whistling sound with one's mouth.
    A happy person is able to whistle and work at the same time.