<p><strong>Noun</strong></p><ul><li>a small, slender, often pointed piece of wood, metal, etc., used to fasten, support, or attach things.</li><li>Synonyms: peg, bolt</li><li>a short, slender piece of wire with a point at one end and a head at the other, for fastening things together.</li><li>any of various forms of fasteners or ornaments consisting essentially or partly of a pointed or penetrating wire or shaft (often used in combination): a jeweled pin.</li><li>Synonyms: brooch</li><li>a badge having a pointed bar or pin attached, by which it is fastened to the clothing: a fraternity pin.</li><li>Digital Technology: a photo or link that is bookmarked on Pinterest, a website and mobile application: She added 5 pins to her recipes board.</li><li>Machinery: a short metal rod, as a linchpin, driven through holes in adjacent parts, as a hub and an axle, to keep the parts together.</li><li>a short cylindrical rod or tube, as a wrist pin or crankpin, joining two parts so as to permit them to move in one plane relative to each other.</li><li>a short axle, as one on which a pulley rotates in a block.</li><li>the part of a cylindrical key stem entering a lock.</li><li>a clothespin.</li><li>a hairpin.</li><li>rolling pin.</li><li>a peg, nail, or stud marking the center of a target.</li><li>Bowling: any one of the rounded wooden clubs set up as the target in tenpins, ninepins, duckpins, etc.</li><li>Golf: the flagstaff which identifies a hole.</li><li>any of the projecting knobs or rails on a pinball machine that serve as targets for the ball.</li><li>Informal: a human leg.</li><li>Music: peg (def 5).</li><li>Wrestling: a fall.</li><li>Nautical: an axle for a sheave of a block.</li><li>belaying pin.</li><li>Carpentry: a tenon in a dovetail joint; dovetail.</li><li>a very small amount; a trifle: Such insincere advice isn't worth a pin.</li><li>Chess: the immobilization of an enemy piece by attacking with one's queen, rook, or bishop.</li><li>Electronics: a pin-shaped connection, as the terminals on the base of an electron tube or the connections on an integrated circuit.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to fasten or attach with or as with a pin or pins: to pin two pieces of cloth together.</li><li>to hold fast in a spot or position (sometimes followed by down): The debris pinned him down.</li><li>to transfix or mount with a pin or the like: to pin a flower as a botanical specimen.</li><li>Chess: to immobilize (an enemy piece) by placing one's queen, rook, or bishop in a position to check the exposed king or capture a valuable piece if the pinned piece were moved.</li><li>Wrestling: to secure a fall over one's opponent.</li><li>Digital Technology: to bookmark (a photo or link) on Pinterest, a website and mobile application: He pinned a jacket from Macy's on his fashion board.</li><li>to fix (a social media post) to the top of a feed: She pinned a tweet about her forthcoming book to the top of her Twitter feed.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>Digital Technology: to bookmark a photo or link on Pinterest: I've been pinning a lot lately.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to bind or hold to a course of action, a promise, etc.</li><li>to force (someone) to deal with a situation or to come to a decision: We tried to pin him down for a definite answer, but he was too evasive for us.</li><li>to make (a piece of masonry) level or plumb with wedges.</li><li>to fill (gaps in a rubble wall, etc.) with spalls.</li></ul><p><strong>End of Response</strong></p>