intransitive. To give accusatory or incriminatory information about a person, their actions, etc., esp. to a person in authority; to bring a…

intransitive. Chiefly colloquial. To inform on (formerly also upon, against) an accomplice or associate; to turn informer.

intransitive and transitive. To speak, tell, or utter secretly, to ‘whisper’; to give secret information, turn informer. ? Obsolete.

Criminals' slang (now chiefly U.S.). = sing out (sense 5c). Also to sing like a bird, to sing like a canary. Originally in proverbial phrase †he that…

intransitive. (a) To divulge a secret, turn informer, ‘peach’. (b) (See quot. 1725.)

slang. To confess; to turn informer; to ‘split’ or ‘peach’. (Cf. squeal, v. 3.)

Cant. = whiddle, v.

(slang), variant whiddle, v., to ‘peach’.

slang. to blow the gab: to reveal incriminating information, esp. to the police; to talk; to ‘blab’. Cf. to blow the gaff at gaff, n.2 2. Now archaic.

intransitive. To inform upon or (now usually) on a person; to peach, turn informer. Also, to reveal or give information to (someone). slang.

slang. intransitive. Originally: (Politics) to desert a party, cause, or principle; to go over as a deserter; (now also) to abandon, desert, or…

Criminals' slang. intransitive. To inform on a person to the police; †to turn Queen's or King's evidence (obsolete).

Cant. To peach, turn informer. Obsolete.

slang. (See quot. 1819.)

Const. on or upon (a person).

slang. intransitive. To turn informer; to inform against.

To inform on (a person), to tell tales.

slang. To turn informer; to inform or ‘peach’ on a person. (Cf. squeak, v. 2.)

absol. To tell tales, ‘peach’. (See also 30.)

transitive. slang. To give accusatory or incriminatory information about (an accomplice or associate).

transitive. To watch, look at. Obsolete. rare.

intransitive. slang (originally U.S., now chiefly Australian and New Zealand). With †about, on. To inform on someone; to tell tales about…

U.S. slang. To turn informer, to ‘squeal’.

intransitive. To inform on a criminal.

A policeman; also attributive, as in copperstick, a policeman's truncheon. Hence, one who informs on fellow prisoners; a police informant; esp. to co…

To give information to the police. Also transitive to inform on (a person).

School slang. To peach, inform, tell tales.

To confess; to give information (cf. sense 3b). slang (originally U.S.).

intransitive. To act as a stool or stool-pigeon; to inform on (someone). slang (chiefly U.S.).

intransitive, to tell tales or ‘sneak’ on (somebody).

intransitive. To act as a police informer. slang.

To disclose information, spec. to the police (or another authority), esp. incriminating oneself or others; to confess; to turn informer or ‘squeal’…

intransitive. To inform on.

To turn informer; to give evidence against one's accomplices. slang.

In Birmingham: a police informer. Also as v. intransitive = inform, v. 4b.

British colloquial (originally Criminals' slang). Cf. grass, n.1 12a. intransitive. To inform on someone to the police or (later more widely)…

transitive (originally Criminals' slang). To report or betray (a person, esp. an associate or accomplice) to the police or other authorities. Also in…

transitive. U.S. slang. To inform on (a person) to the police. Also to dime on. Cf. to drop a dime at drop, v. additions.