warrant (n)
sanction (n)
indorsement (n)
imprimatur (n)
endorsement (n)
countenance (n)

Definition: formal and explicit approval
Example: a Democrat usually gets the union's endorsement.

allow (v)
countenance (v)
let (v)
permit (v)

Definition: consent to, give permission
Example: She permitted her son to visit her estranged husband. I won't let the police search her basement. I cannot allow you to see your exam.

countenance (n)
visage (n)

Definition: the appearance conveyed by a person's face
Example: a pleasant countenance. a stern visage.

countenance (n)
kisser (n)
mug (n)
phiz (n)
physiognomy (n)
smiler (n)
visage (n)

Definition: the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)