(military) An attack by a body of troops to gauge the strength of the enemy.

plural of normal force

(physics) The unit of force in the system of Planck units, equal to the amount of force required to accelerate one Planck mass by one Planck acceleration: F_P=(c⁴)/G≈1.21⨯10⁴⁴ mbox N

plural of Planck force

simple past tense and past participle of join forces

plural of reduction in force

(transitive) To abort an unresponsive computer program, bypassing the usual closure process.

(physics) Coulomb force, the attraction or repulsion between particles based on their electric charge.

simple past tense and past participle of force feed

plural of electromotive force