Synonyms for Countenance (same or very similar meaning)
WordNet sense 1 (formal and explicit approval):
endorsement, imprimatur, sanction, warrant, indorsementWordNet sense 2 (the human face (`kisser' and `smiler' and `mug' are informal terms for `face' and `phiz' is British)):
kisser, mug, physiognomy, visage, Phiz, smilerWordNet sense 3 (consent to, give permission):
allow, let, permit, permitFrom the ODE community, based on WordNetadd/edit