1. A small slender (often pointed) piece of wood or metal used to support, fasten or attach things
   "He used a pin to secure the boutonniere to his lapel"
    
2. A piece of jewellery that is pinned onto the wearer's garment
   "She wore her grandmother's antique cameo pin on her collar"
    
3. A small marker inserted into a surface to mark scores or define locations etc.
   "She placed a pin on the map to mark her destination";
   - peg
    
4. Flagpole used to mark the position of the hole on a golf green
   "The golfer aimed his putt towards the pin";
   - flag
    
5. A club-shaped wooden object used in bowling; set up in triangular groups of ten as the target
   "The bowling pin at the front is called the headpin";
   - bowling pin
    
6. Axis consisting of a short shaft that supports something that turns
   "The gear rotated around a central pin";
   - pivot
    
7. 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
   "The locksmith explained how the pin tumblers in the lock mechanism worked";
   - pin tumbler
    
8. A holder attached to the gunwale of a boat that holds the oar in place and acts as a fulcrum for rowing
   "The old fisherman's boat still had traditional wooden pins";
   - peg, thole, tholepin, rowlock [Brit], oarlock [N. Amer]
    
9. When a wrestler's shoulders are forced to the mat
   "He won by pin in the second round";
   - fall
    
10. [informal] A human limb; commonly used to refer to a whole limb but technically only the part of the limb between the knee and ankle
    "fever left him weak on his pins";
    - leg, peg [informal], stick [informal]

1. To hold fast or prevent from moving
   "The child was pinned under the fallen tree";
   - trap, immobilize, immobilise [Brit]
    
2. Attach or fasten with pins
   "pin the needle to the shirt"
    
3. Pierce with a pin
   "pin down the butterfly"
    
4. (chess) immobilize a piece
   "He pinned the knight to the king"

1. A number you choose and use to gain access to various accounts
   "She entered her PIN at the ATM";
   - personal identification number, PIN number

Derived forms: pins, PINs, pinned, pinning

Type of: aggress, attack, axis, axis of rotation, bowling equipment, empale, fasten, fastener, fastening, fix, fixing, golf equipment, hold, holder, holdfast, impale, jewellery [Brit, Cdn], jewelry [N. Amer], limb, mark, marker, marking, number, secure, spike, transfix, triumph, tumbler, victory

Antonym: unpin

Part of: body, cylinder lock, dinghy, dory, organic structure, rowboat [N. Amer], rowing boat [Brit], wrestling match

Encyclopedia: Pin, Haute-Saône