fifth columnist

1. 1.

   a member of a clandestine subversive organization who tries to help a potential invader

   Synonymssaboteur

   Broadertraitor

   Part offifth column

Questions about fifth columnist

What does fifth columnist mean?

fifth columnist means "a member of a clandestine subversive organization who tries to help a potential invader".

What is another word for fifth columnist?

Close synonyms include saboteur. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.