Squeal (?), v. i. [imp. & p. p. Squealed (?); p. pr. & vb. n. Squealing.] [Of Scand. origin; cf. Sw. sqväla, Norw. skvella. Cf. Squeak, Squall.] 1. To cry with a sharp, shrill, prolonged sound, as certain animals do, indicating want, displeasure, or pain.

2. To turn informer; to betray a secret. [Slang]

Squeal, n. A shrill, somewhat prolonged cry.

Squeal (?), v. i. [imp. & p. p. Squealed (?); p. pr. & vb. n. Squealing.] [Of Scand. origin; cf. Sw. sqväla, Norw. skvella. Cf. Squeak, Squall.] 1. To cry with a sharp, shrill, prolonged sound, as certain animals do, indicating want, displeasure, or pain.

2. To turn informer; to betray a secret. [Slang]

Squeal, n. A shrill, somewhat prolonged cry.

• A high pitched sound, as a scream of a child, or noisy worn-down brake pads
  
• to scream a high-pitched squeal
  
• to give sensitve information about someone to a third party; to rat-on someone