45 entries under expression topic. ×

6
stool pigeon(noun, idiom, catch, informer)
5
get at(verb, phrasal verb)
4
get to(verb, phrasal verb)
4
narcotics agent(noun, idiom)
2
police informer
1
Sherlock Holmes(noun, agent, spy, police)
1
bird dog(noun, agent, spy, police)
1
cheese off(verb, phrasal verb, upset, irritate)
1
deep throat(noun, source, sneak, informer)
1
fat mouth(noun, gossip, informer, rat)
1
fork tongue(noun, sneak, herald, informer)
1
plainclothes officer(noun, agent, spy, police)
1
police officer(noun, agent, spy, informer)
1
private eye(noun, agent, spy, informer)
1
private investigator(noun, agent, spy, police)
0
Benedict Arnold(noun, informer, rat, traitor)
0
ask for it(verb, idiom, upset, irritate)
0
bawl out(verb, phrasal verb)
0
burn up(verb, upset, irritate, aggravate)
0
cause friction
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APASmart Define. (2015). nark thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/nark/thesaurus/synonyms
ChicagoSmart Define. 2015. "nark thesaurus" https://smartdefine.org/nark/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, nark thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/nark/thesaurus/synonyms>.
MLASmart Define. "nark thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/nark/thesaurus/synonyms>