The quality of an individual to find certain things funny.

(medicine, now rare, historical) Someone who believes that health and temperament are determined by bodily humours; a humoralist. / (obsolete) Someone subject to whims or fancies; an eccentric.

(dated) A pie made from the offal of deer or hog. / (idiomatic) Humility, being humble.

A container designed to keep its contents at a constant humidity; especially such a box for storing cigars.

(informal) Wednesday.

(virology) Either of the two related viruses, human immunodeficiency virus 1 (HIV-1) and human immunodeficiency virus 2 (HIV-2) that progressively destroy the body's immune system and can potentially lead to AIDS.

(now chiefly law) A very destructive and immoral act; later specifically, something causing widespread human misery or loss of life; an atrocity.

(ophthalmology, US) The clear gel that fills the eyeball between the lens and the retina.

A humanitarian philosophy or practice.

the heat capacity (specific heat) of humid air, expressed per unit mass of dry air in the mixture. The engineering symbol is cₛ.