密 - secrecy, density (pop), minuteness

secret; private; surreptitious

secret agreement

illicit sale; smuggling; bootlegging; trafficking

smuggling oneself into a country; illegal immigration

minute; detailed; careful; scrupulous; thorough

close thicket; dense forest; jungle

secret; secrecy; confidentiality; privacy

smuggling (people); stowing away

rigour; rigor; closeness; compactness; tightly knit

strict; close; precise; scrupulous

secrecy; highly classified information

precise; exact; detailed; accurate; minute; close