- a natural object that covers or envelops;
"under a covering of dust" "the fox was flushed from its cover"
- an artifact that covers something else (usually to protect or shelter or conceal it)
- the act of concealing the existence of something by obstructing the view of it;
"the cover concealed their guns from enemy aircraft"
- the act of protecting something by covering it
- the work of applying something;
"the doctor prescribed a topical application of iodine" "a complete bleach requires several applications" "the surface was ready for a coating of paint"