A face that appears drawn and sunken as a result of long illness or hunger.

Alternative spelling of facsimile

plural of fac-simile

(category theory) Said of a morphism: to be equal to a composition of two morphisms, one of which is the given morphism (that is being said to be "factored through").

(archaic) A lock with duplicate faces so that the key can enter on either side and the lock can be mounted on either a right-hand or a left-hand door.

double-faced; deceitful

To cease laughing or smiling, etc., and compose one's features.

(sometimes humorous) Someone who is more intelligent, talented, or emotionally complex than might be assumed.

Alternative form of not just a pretty face

(medicine, archaic) A variety of bandy leg, associated with partial dislocation of the tibia, once seen in young children who worked in factories.