What is the meaning of concealing?

noun

• The activity of keeping something secret.
  • synonyms: concealment, hiding

verb

• Prevent from being seen or discovered.
  • usage: "Muslim women hide their faces"; "hide the money"
  • synonyms: hide, conceal
• Hold back; keep from being perceived by others.
  • usage: "She conceals her anger well"
  • synonyms: conceal, hold back, hold in

adjective

• Covering or hiding.
  • usage: "the concealing darkness"; "concealing curtains prevented discovery"