Polite or honorific term for someone's face. Used to show respect or formality, often when speaking about a superior, customer, or in service contexts.
I am honored to see your face, esteemed customer.
The teacher always has a kind face.
お顔 is the polite/honorific form of 顔, used when referring respectfully to someone else's face.
Standard polite/honorific spelling using お- prefix and 顔.
Formal or literary spelling using 御; less common in everyday writing.
Formed by attaching the honorific prefix お- to 顔 (かお, 'face').