weight

n. heaviness, amount something weighs; unit of weight or mass; object which weighs a given amount and is used in weightlifting; heavy physical load; mental burden, pressure; importance, influence

v. load with additional weight, add weight to; oppress, burden; regard, esteem; ascribe statistical weight to

In the physical sciences, weight is a measurement of the gravitational force acting on an object. Near the surface of the Earth, the acceleration due to gravity is approximately constant; this means that an object's weight is roughly proportional to its mass. The words "weight" and "mass" are therefore often used interchangeably, even though they do not describe the same concept. Weight is the force with which a body is attracted toward the earth or a celestial body by gravitation and which is equal to the product of the mass and the local gravitational acceleration
See more at Wikipedia.org...

Noun
1. the vertical force exerted by a mass as a result of gravity
(hypernym) physical property
(hyponym) body weight
(attribute) heavy
2. sports equipment used in calisthenic exercises and weightlifting; a weight that is not attached to anything and is raised and lowered by use of the hands and arms
(synonym) free weight, exercising weight
(hypernym) sports equipment, sporting goods
(hyponym) barbell
3. the relative importance granted to something; "his opinion carries great weight"
(hypernym) importance
4. an artifact that is heavy
(hypernym) artifact, artefact
(hyponym) bob
(derivation) burden, burthen, weight down
5. an oppressive feeling of heavy force; "bowed down by the weight of responsibility"
(hypernym) oppression, oppressiveness
6. a system of units used to express the weight of something
(synonym) system of weights
(hypernym) system of measurement, metric
(hyponym) avoirdupois, avoirdupois weight
7. a unit used to measure weight; "he placed two weights in the scale pan"
(synonym) weight unit
(hypernym) unit of measurement, unit
(hyponym) troy unit
8. (statistics) a coefficient assigned to elements of a frequency distribution in order to represent their relative importance
(synonym) weighting
(hypernym) coefficient
(derivation) slant, angle
(classification) statistics
Verb
1. weight down with a load
(synonym) burden, burthen, weight down
(hypernym) charge
(hyponym) overburden
2. present with a bias; "He biased his presentation so as to please the share holders"
(synonym) slant, angle
(hypernym) bias, predetermine
(derivation) weighting

(v. t.)
To load with a weight or weights; to load down; to make heavy; to attach weights to; as, to weight a horse or a jockey at a race; to weight a whip handle.
  

(v. t.)
To assign a weight to; to express by a number the probable accuracy of, as an observation. See Weight of observations, under Weight.
  

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

(v. t.)
The quantity of heaviness; comparative tendency to the center of the earth; the quantity of matter as estimated by the balance, or expressed numerically with reference to some standard unit; as, a mass of stone having the weight of five hundred pounds.
  

(v. t.)
The quality of being heavy; that property of bodies by which they tend toward the center of the earth; the effect of gravitative force, especially when expressed in certain units or standards, as pounds, grams, etc.
  

(v. t.)
Importance; power; influence; efficacy; consequence; moment; impressiveness; as, a consideration of vast weight.
  

(v. t.)
Hence, pressure; burden; as, the weight of care or business.
  

(v. t.)
A scale, or graduated standard, of heaviness; a mode of estimating weight; as, avoirdupois weight; troy weight; apothecaries' weight.
  

(v. t.)
A ponderous mass; something heavy; as, a clock weight; a paper weight.
  

(v. t.)
A definite mass of iron, lead, brass, or other metal, to be used for ascertaining the weight of other bodies; as, an ounce weight.
  

(W) Compare with mass .Weight is the force exerted by an object in a gravitational field. The weight of an object (W) arises from its mass (m): W = mg where g is the acceleration due to gravity (about 9.8 m/s2 on Earth).