凸面鏡

convex mirror

to stick out / protruding / convex / male (connector etc) / Taiwan pr. [tu2]

convex surface

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless

mask (diving)

mirror / lens