covert

Short definition from Wiktionary

Adjective

1. 1
   Secret, surreptitious, concealed.
2. 2
   Hidden, covered over; overgrown, sheltered.
3. 3
   Under coverture.

Noun

1. 1
   A covering.
2. 2
   A disguise.
3. 3
   A hiding place.
4. 4
   Area of thick undergrowth where animals hide.
5. 5
   A feather that covers the bases of flight feathers.

Proper noun

1. 1
   A surname.