- an influence on a body or system, producing or tending to produce a change in movement or in shape or other effects.
- the intensity of such an influence. Symbol: F, f
verb (used with object), forced, forc·ing.
- to cause (a base runner) to be put out by obliging the runner, as by a ground ball, to vacate a base and attempt to move to the next base in order to make room for another runner or the batter.
- to cause (a base runner or run) to score, as by walking a batter with the bases full (often followed by in).
- to compel (a player) to trump by leading a suit of which the player has no cards.
- to compel a player to play (a particular card).
- to compel (a player) to play so as to make known the strength of the hand.
- to develop (a print or negative) for longer than usual in order to increase density or bring out details.
- to bring out underexposed parts of (a print or negative) by adding alkali to the developer.
verb (used without object), forced, forc·ing.
- in operation; effective: This ancient rule is no longer in force.
- in large numbers; at full strength: They attacked in force.
Origin of force
SYNONYMS FOR force
British Dictionary definitions for in force (1 of 2)
- a dynamic influence that changes a body from a state of rest to one of motion or changes its rate of motion. The magnitude of the force is equal to the product of the mass of the body and its acceleration
- a static influence that produces an elastic strain in a body or system or bears weightSymbol: F
- intellectual, social, political, or moral influence or strengththe force of his argument; the forces of evil
- a person or thing with such influencehe was a force in the land
- (of a law) having legal validity or binding effect
- in great strength or numbers
- to compel (a player) to trump in order to take a trick
- to compel a player by the lead of a particular suit to play (a certain card)
- (in bridge) to induce (a bid) from one's partner by bidding in a certain way
Derived Formsforceable, adjectiveforceless, adjectiveforcer, nounforcingly, adverb
Word Origin for force
British Dictionary definitions for in force (2 of 2)
Word Origin for force
Medicine definitions for in force
Science definitions for in force
Culture definitions for in force
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.)
Idioms and Phrases with in force (1 of 2)
In full strength, in large numbers, as in Demonstrators were out in force. This usage originally alluded to a large military force. [Early 1300s]
Operative, binding, as in This rule is no longer in force. This usage originally alluded to the binding power of a law. [Late 1400s]
Idioms and Phrases with in force (2 of 2)
In addition to the idioms beginning with force
- force someone's hand
- force to be reckoned with
- brute force
- driving force
- in force
- join forces
- reckon with (force to be reckoned with)