WordNet: fifth columnist, saboteur
a member of a clandestine subversive organization who tries to help a potential invader
- hypernym traitor, treasonist
- member holonym Trojan horse, fifth column
fifth columnist
- (suomi) viidennen kolonnan jäsen (synonyymi)
saboteur
- (suomi) sabotoija (synonyymi)
- (suomi) sabotööri (synonyymi)