concealment

Noun

• the activity of keeping something secret

• a covering that serves to conceal or shelter something
  • a screen of trees afforded privacy
    
  • under cover of darkness
    
  • the brush provided a covert for game
    
  • the simplest concealment is to match perfectly the color of the background
    

• the condition of being concealed or hidden

Related words

• Synonyms: 
  concealing , hiding , screen , cover , covert , privacy , privateness , secrecy