spy code

Covert communication system

Spy code refers to systems of secret communication used in espionage—ciphers, signals, or coded language designed to conceal information from enemies: The agent transmitted the message in spy code.

The term often appears in children's games and fiction, evoking Cold War intrigue and hidden messages: We made up our own spy code using numbers for letters.

Related

intelligence · secret agent · message · covert · covert ops · classified · scramble · enigma · transmission · agent · double agent · cryptic · hidden · intercept · clandestine · password · mission · cryptography

Opposites
concealment vs. transparency

spy codeplain text

Unencoded readable characters

plaintext · cleartext · open communication · everyday speech · straight talk

secrecy of purpose

spy codepublic announcement

Official communication to all

open communication · broadcast · plain speech · press release · broadcast message

Family

spy, code, spies, spied, spying, spymaster, codes, coded, coding

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G