1. (n.) The state or quality of being hidden\; as, his movements were detected in spite of their secrecy.

2. (n.) That which is concealed; a secret.

3. (n.) Seclusion; privacy; retirement.

4. (n.) The quality of being secretive; fidelity to a secret; forbearance of disclosure or discovery.

Jim Crow apartheid apartness burial burying censorship clandestineness clouding concealedness concealment confidentiality confidentially covering covering up covertly covertness darkening deception detachment disappearance furtively furtiveness hiddenness hiding hugger-mugger hugger-muggery hush hush-hush immateriality imperceptibility indiscernibility interment invisibility isolation isolationism masking mysteriously mystery mystification nonappearance obscuration obscurement occultation privacy privately privatism privatization putting away quarantine recess reclusion retirement retreat rustication screening seclusion secretion secretively secretiveness secretly secretness segregation separation sequestration silence sneakily splendid isolation stealth stealthily subterfuge suppression surreptitiously surreptitiousness the invisible the unseen uncommunicativeness unperceivability unseeableness unsubstantiality viewlessness withdrawal