| 单词 | pin |
| 释义 | pin /pin/, n. , v. , pinned, pinning. n. 1. a small, slender, often pointed piece of wood, metal, etc., used to fasten, support, or attach things. 2. a short, slender piece of wire with a point at one end and a head at the other, for fastening things together. 3. 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. 4. a badge having a pointed bar or pin attached, by which it is fastened to the clothing: a fraternity pin. 5. Mach. a. a short metal rod, as a linchpin, driven through holes in adjacent parts, as a hub and an axle, to keep the parts together. b. 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. c. a short axle, as one on which a pulley rotates in a block. 6. the part of a cylindrical key stem entering a lock. 7. a clothespin. 8. a hairpin. 9. See rolling pin. 10. a peg, nail, or stud marking the center of a target. 11. Bowling. any one of the rounded wooden clubs set up as the target in tenpins, ninepins, duckpins, etc. 12. Golf. the flag staff which identifies a hole. 13. any of the projecting knobs or rails on a pinball machine that serve as targets for the ball. 14. Informal. a human leg. 15. Music. peg (def. 5). 16. Wrestling. a fall. 17. Naut. a. an axle for a sheave of a block. b. See belaying pin. 18. Carpentry. a tenon in a dovetail joint; dovetail. 19. a very small amount; a trifle: Such insincere advice isn't worth a pin. 20. Chess. the immobilization of an enemy piece by attacking with one's queen, rook, or bishop. 21. Electronics. a pin-shaped connection, as the terminals on the base of an electron tube or the connections on an integrated circuit. 22. pull the pin, Informal. to end a relationship, project, program, or the like, because of lack of continuing interest, success, funds, etc. v.t. 23. to fasten or attach with or as with a pin or pins: to pin two pieces of cloth together. 24. to hold fast in a spot or position (sometimes fol. by down): The debris pinned him down. 25. to transfix or mount with a pin or the like: to pin a flower as a botanical specimen. 26. 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. 27. Wrestling. to secure a fall over one's opponent. 28. get pinned, a. (of a young woman) to receive a male student's fraternity pin as a symbol of his affection and fidelity, usually symbolizing that the couple is going steady or plans to become engaged. b. (of a young couple) to become formally pledged to one another, though not yet engaged, by the bestowing of such a pin or the exchange of pins. 29. pin down, a. to bind or hold to a course of action, a promise, etc. b. 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. 30. pin in, to fill (gaps in a rubble wall, etc.) with spalls. 31. pin something on someone, Informal. to ascribe the blame or guilt for something to a person; show someone to be culpable: They pinned the crime on him. 32. pin up, to make (a piece of masonry) level or plumb with wedges. [bef. 1100; (n.) ME pinne, OE pinn peg; c. D pin, G Pinne, ON pinni; perh. < L pinna feather, quill (see PINNA); (v.) ME pinnen, deriv. of the n.] Syn. 1. bolt, peg. 3. brooch. |
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