That which produces or effects a result; that from which anything proceeds, and without which it would not exist.

To effect as an agent; to produce; to be the occasion of; to bring about; to bring into existence; to make; -- usually followed by an infinitive, sometimes by that with a finite verb.

That which produces an effect or brings about a change.

Anything that is responsible for bringing about something else, usually termed the effect.

(Kumu) That which brings about effect.

an active and primary thing in relation to the effect

a real source of action, producing an effect which without it would not have been produced

That which is responsible for any change, motion, or action; the necessary antecedent of any effect, or, in science, the invariable antecedent of a given event. In philosophy, the ultimate power that produces the being of anything.

That which creates an effect (result). If the effect is always present when the cause is present but never present when the cause is not present, causality is determined. Causes may be independent or linked to other conditions.

The circumstances, conditions, or agencies that bring together a fuel, ignition source, and oxidizer (such as air or oxygen) resulting in a fire or a combustion explosion.

Full effect.

The circumstance that brings about a result or effect. A cause is the reason for bringing a legal action.