The force on an object due to the gravitational attraction between it and the Earth (or whatever astronomical object it is primarily influenced by).

An object used to make something heavier.

A standardized block of metal used in a balance to measure the mass of another object.

(figurative) Importance or influence.

(weightlifting) An object, such as a weight plate or barbell, used for strength training.

(lubricants) Viscosity rating.

(physics) Mass (atomic weight, molecular weight, etc.)

(physics, proscribed) Synonym of mass

(measurement) Mass (net weight, troy weight, carat weight, etc.).

(statistics) A variable which multiplies a value for ease of statistical manipulation.

(topology) The smallest cardinality of a base.

(typography) The boldness of a font; the relative thickness of its strokes.

(visual art) The relative thickness of a drawn rule or painted brushstroke, line weight.

(visual art) The illusion of mass.

(visual art) The thickness and opacity of paint.

(figurative) Pressure; burden.

The resistance against which a machine acts, as opposed to the power which moves it.

(slang, uncountable) Shipments of (often illegal) drugs.

(slang, countable) One pound of drugs, especially cannabis.

Weight class

(transitive) Add weight to something, making it heavier, and in the context of dyeing, it refers to loading fabrics with barite or other substances to increase their weight.

(transitive) To load, burden or oppress someone.

(transitive, mathematics) To assign weights to individual statistics.

(transitive) To bias something; to slant.

(transitive, horse racing) To handicap a horse with a specified weight.

(transitive, sports) To give a certain amount of force to a throw, kick, hit, etc.