n. The act of separating or cutting off; detachment of a part; excision.n. Determination, as of a contest or an event; end, as of a struggle; arbitrament: as, the decision of a battle by arms.n. Determination, as of a question or a doubt; final judgment or opinion in a case which has been under deliberation or discussion: as, the decision of the Supreme Court.n. A resolution; a fixing of a purpose in the mind.n. The quality of being decided; ability to form a settled purpose; prompt determination: as, a man of decision.n. Decision, Determination, Resolution. Decision is the quality of being able to make up one's mind promptly, clearly, and firmly as to what shall be done and the way to do it. Determination is the settling upon some line of action with a fixed purpose to stick to it; it is somewhat nearer than the others to doggedness, and sometimes approaches obstinacy. Determination may be negative, as not to do a thing, but resolution is generally positive or active; it often implies more courage than the others, and is otherwise more high-minded. But these words are often used interchangeably.