concealment

kənˈsiːlm(ə)nt

noun

the action of hiding something or preventing it from being known.

the concealment of the weapons

hiding,secretion,cover,shelter,protection,screen,hiding place,privacy,seclusion,secrecy,keeping secret,keeping hidden,hushing up,covering up,cover-up,suppression,disguise,camouflage,whitewash,misprision