Section  —n. 1 each of the parts of a thing or out of which a thing can be fitted together. 2 part cut off. 3 subdivision. 4 us a area of land. B district of a town. 5 act of cutting or separating surgically. 6 a cutting of a solid by a plane. B resulting figure or area. —v. 1 arrange in or divide into sections. 2 compulsorily commit to a psychiatric hospital. [latin seco sect- cut]