n. The hole in which a screw (in sense 2) turns.n. A cylinder of wood or metal having a spiral ridge (the thread) winding round it, usually turning in a hollow cylinder, in which a spiral channel is cut corresponding to the ridge.n. A spiral shell; a screw-shell.n. A screw propeller.n. [Short for screw steamer.] A steam-vessel propelled by means of a screw propeller.n. A small parcel of tobacco done up in paper with twisted ends, and usually sold for a penny.n. A turn of a screw.n. A twist or turn to one side: as, to give a billiard-ball a screw by striking it low down or on one side with a sharp, sudden blow.n. Pressure: usually with the.n. A professor or tutor who requires students to work hard, or who subjects them to strict examination.n. Wages or salary.n. In mathematics, a geometrical form resulting from the combination of an axis, or straight line given in position, with a pitch or linear magnitude.To turn, move, tighten, fasten, press, or make firm by a screw, or by giving a turn to a screw: apply a screw to, for the purpose of turning, moving, tightening, fastening, or pressing: as, to screw up a bracket; to screw a lock on a door; to screw a press.To turn or cause to turn, as if by the application of a screw; twist.To force; especially, to force by the application of pressure similar to that exerted by the advancing action or motion of a screw; squeeze: sometimes with up or out: as, to screw up one's courage.To press hard upon; oppress as by exactions or vexatious restrictions or conditions.To twist; contort; distort; turn so as to distort.To turn so as to serve for tightening, fastening, etc.: as, a nut that screws to the right or to the left.To have or assume a spiral or twisting motion: as, the ball screwed to the left.To move or advance by means of a screw propeller.To require students to work hard, or subject them to strict examination.n. A stingy fellow; a close or penurious person; one who makes a sharp bargain; an extortioner; a miser; a skinflint.n. A vicious, unsound, or broken-down horse.n. In English billiards, the draw shot. The movement actually is a screw, but so, in the opposite direction, is the follow shot, though it is not so named. When pocket-openings were larger it was by means of the screw, mainly, that long ‘spot-ball’ runs were made in England and America.n. A mechanical loader for handling and lowering bales of cotton into the cargo-space of vessels.n. A screw placed against the edge of a disk and fitting into helical teeth formed on that edge, so that when the screw is turned a very fine angular motion of the disk results. It also acts as a clamp to prevent angular motion except when the screw is turned. It is used for index plates in gear-cutters to divide the circle into aliquot parts and on the graduated limbs and verniers of astronomical, surveying, and other instruments.In golf, to impart a side spin to a ball.