Concealment
CONCEALMENT, noun
1. Forbearance of disclosure; a keeping close or secret; as the concealment of opinions or passions.
2. The act of hiding, covering, or withdrawing from sight; as the concealment of the face by a mask, or of the person by any cover or shelter.
3. The state of being hid or concealed; privacy; as a project formed in concealment
4. The place of hiding; a secret place; retreat from observation; cover from sight.
The cleft tree offers its kind concealment to a few, their food its insects, and its moss their nests.