<p><strong>Noun:</strong></p><ul><li>A metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.</li><li>A threaded cylindrical pin or rod with a head at one end, engaging a threaded hole and used either as a fastener or as a simple machine for applying power, as in a clamp, jack, etc.</li><li>British: a tapped or threaded hole.</li><li>Something having a spiral form.</li><li>Screw propeller.</li><li>Usually screws: physical or mental coercion: The terrified debtor soon felt the gangster's screws.</li><li>A single turn of a screw.</li><li>A twist, turn, or twisting movement.</li><li>Chiefly British: a little salt, sugar, tobacco, etc., carried in a twist of paper.</li><li>Slang: a mean, old, or worn-out horse; a horse from which one can obtain no further service.</li><li>Slang: a friend or employer from whom one can obtain no more money.</li><li>Slang: a miser.</li><li>British Informal: salary; wages: It's not my dream job, but the screw's decent enough.</li><li>Slang: a prison guard.</li><li>Slang: Vulgar: an act of sexual intercourse.</li><li>A person viewed as a sexual partner.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>To fasten, tighten, force, press, stretch tight, etc., by or as if by means of a screw or device operated by a screw or helical threads.</li><li>To operate or adjust by a screw, as a press.</li><li>To attach with a screw or screws: to screw a bracket to a wall.</li><li>To insert, fasten, undo, or work (a screw, bolt, nut, bottle top with a helical thread, etc.) by turning.</li><li>To contort as by twisting; distort (often followed by up): Dad screwed his face into a grimace of disgust.</li><li>To cause to become sufficiently strong or intense (usually followed by up): I screwed up my courage to ask for a raise.</li><li>To coerce or threaten.</li><li>To extract or extort.</li><li>Synonyms: squeeze, exact, force, wrest, wring.</li><li>To force (a seller) to lower a price (often followed by down).</li><li>Slang: to cheat or take advantage of (someone).</li><li>Slang: Vulgar: to have sexual intercourse with.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>To turn as or like a screw.</li><li>To be adapted for being connected, taken apart, opened, or closed by means of a screw or screws or parts with helical threads (usually followed by on, together, or off): This top screws on easily.</li><li>To turn or move with a twisting or rotating motion.</li><li>To practice extortion.</li><li>Slang: Vulgar: to have sexual intercourse.</li></ul><p><strong>Verb Phrase (Slang):</strong></p><ul><li>To do nothing; loaf.</li><li>To leave; go away.</li><li>Slang: to ruin through bungling or stupidity: Somehow the engineers screwed up the entire construction project.</li><li>To make a botch of something; blunder: Sorry, I guess I screwed up.</li><li>To make confused, anxious, or neurotic: Losing your job can really screw you up.</li><li>Slang: to waste time in foolish or frivolous activity: If you'd stop screwing around we could get this job done.</li><li>Vulgar: to engage in promiscuous sex.</li></ul>