isolation - a state of separation between persons or groups

bosom - the chest considered as the place where secret thoughts are kept; "his bosom was bursting with the secret"

confidentiality - the state of being secret; "you must respect the confidentiality of your client's communications"

blind - a hiding place sometimes used by hunters (especially duck hunters); "he waited impatiently in the blind"

camouflage - device or stratagem for concealment or deceit

covering - an artifact that covers something else (usually to protect or shelter or conceal it)

shoji - a translucent screen made of a wooden frame covered with rice paper

stalking-horse - screen consisting of a figure of a horse behind which a hunter hides while stalking game

activity - any specific activity; "they avoided all recreational activity"

disguise, camouflage - the act of concealing the identity of something by modifying its appearance; "he is a master of disguise"

mask - activity that tries to conceal something; "no mask could conceal his ignorance"; "they moved in under a mask of friendship"

masking, screening, cover, covering - the act of concealing the existence of something by obstructing the view of it; "the cover concealed their guns from enemy aircraft"

cover - a false identity and background (especially one created for an undercover agent); "her new name and passport are cover for her next assignment"

cover-up - concealment that attempts to prevent something scandalous from becoming public

burying, burial - concealing something under the ground

smoke screen, smokescreen - an action intended to conceal or confuse or obscure; "requesting new powers of surveillance is just a smokescreen to hide their failures"

stealth, stealing - avoiding detection by moving carefully

money laundering - concealing the source of illegally gotten money