cipher; secret code; password; PIN

a room for keeping sth hidden; secret room; hidden chamber

close; intimate; to strengthen (ties, cooperation etc); closely; intently; carefully; (math.) to osculate

to seal up

secret agent; detective; covert investigator

secret; private; confidential; clandestine; a secret

to keep sth confidential; to maintain secrecy

intimate; close

secret; classified; classified information; secret

Miami (Florida)