(1):

(v. t.) To examine rigidly, as a student; to subject to a severe examination.

(2):

(v. i.) To turn one's self uneasily with a twisting motion; as, he screws about in his chair.

(3):

(n.) A small packet of tobacco.

(4):

(n.) An amphipod crustacean; as, the skeleton screw (Caprella). See Sand screw, under Sand.

(5):

(v. i.) To use violent mans in making exactions; to be oppressive or exacting.

(6):

(n.) An instructor who examines with great or unnecessary severity; also, a searching or strict examination of a student by an instructor.

(7):

(n.) An extortioner; a sharp bargainer; a skinflint; a niggard.

(8):

(n.) A steam vesel propelled by a screw instead of wheels; a screw steamer; a propeller.

(9):

(n.) Anything shaped or acting like a screw; esp., a form of wheel for propelling steam vessels. It is placed at the stern, and furnished with blades having helicoidal surfaces to act against the water in the manner of a screw. See Screw propeller, below.

(10):

(n.) Specifically, a kind of nail with a spiral thread and a head with a nick to receive the end of the screw-driver. Screws are much used to hold together pieces of wood or to fasten something; - called also wood screws, and screw nails. See also Screw bolt, below.

(11):

(n.) A cylinder, or a cylindrical perforation, having a continuous rib, called the thread, winding round it spirally at a constant inclination, so as to leave a continuous spiral groove between one turn and the next, - used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male screw, or, more usually the screw; the latter as the internal, or female screw, or, more usually, the nut.

(12):

(v. t.) To twist; to distort; as, to screw his visage.

(13):

(v. t.) To force; to squeeze; to press, as by screws.

(14):

(v. t.) Hence: To practice extortion upon; to oppress by unreasonable or extortionate exactions.

(15):

(n.) An unsound or worn-out horse, useful as a hack, and commonly of good appearance.

(16):

(n.) A straight line in space with which a definite linear magnitude termed the pitch is associated (cf. 5th Pitch, 10 (b)). It is used to express the displacement of a rigid body, which may always be made to consist of a rotation about an axis combined with a translation parallel to that axis.

(17):

(v. t.) To turn, as a screw; to apply a screw to; to press, fasten, or make firm, by means of a screw or screws; as, to screw a lock on a door; to screw a press.