密 - secrecy, density (pop), minuteness

rigour; rigor; closeness; compactness; tightly knit

secret; secrecy; confidentiality; privacy

fine (grain, workmanship, etc.); close (weave); delicate; intricate; elaborate

illicit sale; smuggling; bootlegging; trafficking

secrecy; highly classified information

close thicket; dense forest; jungle

smuggling (people); stowing away

secret; private; surreptitious

smuggling oneself into a country; illegal immigration

precise; exact; detailed; accurate; minute; close

minute; detailed; careful; scrupulous; thorough

overcrowding; congestion; overpopulation