:a small, slender, often pointed piece of wood, metal, etc., used to fasten, support, or attach things.
:a short, slender piece of wire with a point at one end and a head at the other, for fastening things together.
:any of various forms of fasteners or ornaments consisting essentially or partly of a pointed or penetrating wire or shaft: a jeweled pin.
:a badge having a pointed bar or pin attached, by which it is fastened to the clothing: a fraternity pin.
:Digital Technology. a photo or link that is bookmarked on Pinterest, a website and mobile application: She added 5 pins to her recipes board.
: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.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.a short axle, as one on which a pulley rotates in a block.
:the part of a cylindrical key stem entering a lock.
:a clothespin.
:a hairpin.
:rolling pin.
:a peg, nail, or stud marking the center of a target.
:Bowling. any one of the rounded wooden clubs set up as the target in tenpins, ninepins, duckpins, etc.
:Golf. the flag staff which identifies a hole.
:any of the projecting knobs or rails on a pinball machine that serve as targets for the ball.
:Informal. a human leg.
:Music. peg.
:Wrestling. a fall.
:Nautical. an axle for a sheave of a block.belaying pin.
:Carpentry. a tenon in a dovetail joint; dovetail.
:a very small amount; a trifle: Such insincere advice isn't worth a pin.
:Chess. the immobilization of an enemy piece by attacking with one's queen, rook, or bishop.
:Electronics. a pin-shaped connection, as the terminals on the base of an electron tube or the connections on an integrated circuit.
v.有主动词 verb
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pinned, pin·ning.
:to fasten or attach with or as with a pin or pins: to pin two pieces of cloth together.
:to hold fast in a spot or position: The debris pinned him down.
:to transfix or mount with a pin or the like: to pin a flower as a botanical specimen.
:Chess. to immobilize 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.
:Wrestling. to secure a fall over one's opponent.
:Digital Technology. to bookmark on Pinterest, a website and mobile application: He pinned a jacket from Macy's on his fashion board. to fix to the top of a feed: She pinned a tweet about her forthcoming book to the top of her Twitter feed.
v.无主动词 verb
1
pinned, pin·ning.
:Digital Technology. to bookmark a photo or link on Pinterest: I've been pinning a lot lately.
1
:pin down, to bind or hold to a course of action, a promise, etc.to force 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.