Synonym: betrayer, blabber, rat, squealer. Similar words: informed, inform, former, informal, formerly, performer, reformer, informant. Meaning: [ɪn'fɔrmər /-'fɔːmə] 
n. one who reveals confidential information in return for money.
n. one who reveals confidential information in return for money. 
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1 He later became a police informer.
2 An informer denounced him to the police .
3 The police had planted an informer in the gang.
4 The bomber turned police informer to escape prison.
5 The informer betrayed them to the police.
6 The police provided a safe house for the informer.
7 One of the gang members had turned informer.
8 She was exasperated against the informer.
9 A lead from an informer enabled the police to make several arrests.
10 The gang leader decided that the informer must be taken for a ride.
11 An informer supplied the police with the names of those involved in the crime.
12 His circle had been penetrated by an informer.
13 The bomber turned informer and tipped off police.
14 Two men are accused of murdering the informer to stop him giving evidence at an armed robbery trial.
15 Through the informer in my office they may well have known of the financial constraints upon us and played upon them.
16 He could call in at the Informer office in Chancery Lane and use the telephone to arrange a suitably stimulating lunch.
17 The informer provided very important clues for us.
18 Any one of our employees could be the informer.
19 The mafia liquidated the informer.
20 Speak out of turn,(www.Sentencedict.com) and an informer reports you.
21 The informer has done dirt to her.
22 Alex Vandervoort had authorized him to employ an informer.
23 I would never act as informer against you.
24 Prentice saw Goss fall in behind the informer.
25 Rush to find defence team after sudden arraignment Hit-squad informer faces murder trial.
26 That would seem to imply little reliability as either a mirror or informer of public opinion.
27 Read in studio A man accused of murdering a police informer has been cleared.
28 It was said that at any social gathering one person would be an informer.
29 The hit man, however, turned out to be an informer for the Arizona Department of Public Safety.
30 They shared with the rest of their race an almost paranoiac fear and hatred for the informer.
More similar words: informed, inform, former, informal, formerly, performer, reformer, informant, information, informative, transformer, misinformation, disinformation, information age, information technology, conform, farmer, in force, go in for, deformed, torment, firmer, come in for, reinforce, tormented, conforming, conformist, conformity, turmeric, rain forest.