Underground workings
Synonyms for Underground workings
Possible phrase synonyms
- undercover operation
- secret operation
- covert operation
- secret agency
- covert agency
- secret system
- undercover working
- private action
- clandestine operation
- secret technique
- secret mechanism
- clandestine movement
- clandestine performance
- secret performance
- secret movement
- private agency
- clandestine agency
- hidden system
- covert movement
- hidden mechanism
For more similar words, try Underground workings on Thesaurus.plus dictionary