1. (n.)pin a small, slender, often pointed piece of metal, wood, etc., used as a fastener or support.
2. pin a short, slender piece of wire with a point at one end and a head at the other, for fastening things together.
3. pin any of various forms of fasteners, badges, or ornaments consisting essentially or partly of a penetrating wire or shaft (often used in combination): a fraternity pin; a tiepin.
4. pin a short metal rod, as a linchpin, driven through holes in adjacent parts, as a hub and an axle, to keep the parts together.
5. pin 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.
6. pin the part of a cylindrical key stem entering a lock.
7. pin a peg, nail, or stud marking the center of a target.
8. pin any one of the rounded wooden clubs set up as the target in tenpins, ninepins, duckpins, etc.
9. pin Golf. the pole, with flag, which identifies a hole; flagstick.
10. pin Informal. a human leg.
11. pin Wrestling. a fall.
12. pin Naut.
13. pin a very small amount; a trifle.
14. pin a pin-shaped connection, as the terminals on the base of an electron tube or the connections on an integrated circuit.
15. (v.t.)pin to fasten or attach with or as with a pin or pins.
16. pin to hold fast in a spot or position (sometimes fol. by down).
17. pin to give one's fraternity pin to (a young woman) as a pledge of one's attachment.
18. pin Wrestling. to secure a fall over one's opponent.
19. pin to force (someone) to deal with a situation or to come to a decision.
20. (n.)PIN an identification number assigned to an individual to gain access to a computer system via an automated-teller machine, a point-of-sale terminal, or other device.
1. (noun)pin a piece of jewelry that is pinned onto the wearer's garment
2. (noun)fall, pin when a wrestler's shoulders are forced to the mat
3. (noun)peg, pin small markers inserted into a surface to mark scores or define locations etc.
4. (noun)personal identification number, PIN, PIN number a number you choose and use to gain access to various accounts
5. (noun)pin, peg, stick informal terms for the leg "fever left him weak on his sticks"
6. (noun)pivot, pin axis consisting of a short shaft that supports something that turns
7. (noun)pin, pin tumbler cylindrical tumblers consisting of two parts that are held in place by springs; when they are aligned with a key the bolt can be thrown
8. (noun)pin, flag flagpole used to mark the position of the hole on a golf green
9. (noun)pin a small slender (often pointed) piece of wood or metal used to support or fasten or attach things
10. (noun)peg, pin, thole, tholepin, rowlock, oarlock a holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing
11. (verb)bowling pin, pin a club-shaped wooden object used in bowling; set up in triangular groups of ten as the target
12. (verb)trap, pin, immobilize, immobilise to hold fast or prevent from moving "The child was pinned under the fallen tree"
13. (verb)pin attach or fasten with pins or as if with pins "pin the needle to the shirt". "pin the blame on the innocent man"
14. (verb)pin pierce with a pin "pin down the butterfly"
1. (noun)pin a piece of jewelry that fastens to your clothing a diamond pin
2. pin a very thin sharp piece of metal, used for holding pieces of cloth together Remove the pins when you finish sewing.
3. pin a piece of metal inserted through holes in two objects to hold them together metal pins in the bone
4. pin one of the objects you knock down in the sport of bowling The machine sets up the pins.
5. (verb)pin to fasten or attach using a pin The teacher pinned the ribbon to his shirt.
6. (noun)PIN personal identification number; a security number used with a bank card Please enter your PIN.
Definition of 'pin'
Webster Dictionary
1. (noun)pin a piece of wood, metal, etc., generally cylindrical, used for fastening separate articles together, or as a support by which one article may be suspended from another; a peg; a bolt
2. (noun)pin especially, a small, pointed and headed piece of brass or other wire (commonly tinned), largely used for fastening clothes, attaching papers, etc
3. (noun)pin hence, a thing of small value; a trifle
4. (noun)pin that which resembles a pin in its form or use
5. (noun)pin a peg in musical instruments, for increasing or relaxing the tension of the strings
6. (noun)pin a linchpin
7. (noun)pin a rolling-pin
8. (noun)pin a clothespin
9. (noun)pin a short shaft, sometimes forming a bolt, a part of which serves as a journal
10. (noun)pin the tenon of a dovetail joint
11. (noun)pin one of a row of pegs in the side of an ancient drinking cup to mark how much each man should drink
12. (noun)pin the bull's eye, or center, of a target; hence, the center
13. (noun)pin mood; humor
14. (noun)pin caligo. See Caligo
15. (noun)pin an ornament, as a brooch or badge, fastened to the clothing by a pin; as, a Masonic pin
16. (noun)pin the leg; as, to knock one off his pins
17. (noun)pin to fasten with, or as with, a pin; to join; as, to pin a garment; to pin boards together
18. (verb)pin to peen
19. (verb)pin to inclose; to confine; to pen; to pound
Sense: a short, thin, pointed piece of metal used eg to hold pieces of fabric, paper etc together, especially when making clothes The papers are fastened together by a pin.
Definitions of pin 
Afrikaans: speld
Arabic: دَبّوس
Bulgarian: топлийка
Brazilian: alfinete
Czech: špendlík
German: die Nadel
Danish: knappenål
Greek: καρφίτσα
Spanish: alfiler
Estonian: nööpnõel
Farsi: سوزن ته گرد
Finnish: neula
French: épingle
Hebrew: סִיכָּה
Hindi: आलपीन
Croatian: pribadača
Hungarian: gombostű
Indonesian: jarum
Icelandic: títuprjónn
Italian: spillo, spilla, molletta
Japanese: ピン
Korean: 옷핀, 종이 핀
Lithuanian: segtukas, smeigtukas
Latvian: kniepadata; spraudīte
Malay: jarum peniti
Dutch: speld
Norwegian: knappenål, stift
Polish: szpilka
Persian: سوزن ته گرد
Pashto: ټومبونى ( سنجاق ) كوچنى م
Portuguese: alfinete
Romanian: ac (cu gămălie)
Russian: булавка
Slovak: špendlík
Slovenian: bucika, zaponka
Serbian: pribadača
Swedish: nål
Thai: เข็มหมุด
Turkish: toplu iğne
Taiwanese: 針
Ukrainian: шпилька; прищіпка
Urdu: پن، نتھي کرنے کي سوئي
Vietnamese: ghim; cặp
Chinese: 针
