Meanings
Usage patterns
〈人〉の面をつぶすto make someone lose face
His mistake made the company lose face.
面を付けるto put on a (kendo/protective) mask
He puts on his mask before kendo practice.
〈相手〉の面を打つto strike an opponent's head (in kendo)
He scored a point by striking his opponent's head.
〈事〉の面でin terms of; with regard to (a certain aspect)
There's some concern in terms of funding.
〈物〉が〈数〉面あるthere are ... (flat objects, e.g. mirrors)
There are three mirrors in this room.
