(British spelling) Alternative spelling of forced labor

(American spelling) Work which one is compelled to perform against one's will, especially in a condition of involuntary servitude as a prisoner or slave.

plural of tidal force

A force that completely balances the weight of an object at rest.

The collective group of people who are available for employment, whether currently employed or unemployed (though sometimes only those unemployed people who are seeking work are included).

Alternative spelling of life force

The hypothetical principle that animates all living organisms. / An impulse or influence that gives something life or vitality.

plural of centrifugal force

(physics) The turning effect of a force applied to a rotational system at a distance from the axis of rotation. The moment is equal to the magnitude of the force multiplied by the perpendicular distance between its line of action and the axis of rotation.

The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a force which is not dependent on density changes in the fluid induced by heat.