Shin’yō (信用): trust, credit. The Daijisen dictionary defines it as judging, from a person’s past actions and achievements, that the person can be trusted.
Menboku (面目): face. A person’s standing, position and honor in the eyes of the world and of the people around. The dictionary gives menboku o tamotsu, to keep face, and menboku o tsubusu, to crush face.
Mentsu (面子): face, standing. The dictionary gives mentsu ga tsubureru, face is crushed, and mentsu ni kakawaru, face is at stake.