In physics, something that causes a change in the motion of an object. The modern definition of force (an object's mass multiplied by its acceleration) was given by Isaac Newton in Newton's laws of motion. The most familiar unit of force is the pound. (See mechanics.)
Note: Gravity, and therefore weight, is a kind of force.
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.