[pɪn], (Noun)

Definitions:
- a thin piece of metal with a sharp point at one end and a round head at the other, used for fastening pieces of cloth, paper, etc.

- a metal projection from a plug or an integrated circuit which makes an electrical connection with a socket or another part of a circuit
(e.g: a three-pin plug)

- a stick with a flag placed in a hole to mark its position

- a skittle in bowling

- a person's legs
(e.g: she was very nimble on her pins)

- an attack on a piece or pawn which is thereby pinned

- a half-firkin cask for beer


Phrases:
- as neat as a pin
- be able to hear a pin drop
- for two pins
- pin one's ears back
- pin one's hopes on

Origin:
late Old English pinn, of West Germanic origin; related to Dutch pin ‘pin, peg’, from Latin pinna ‘point, tip, edge’

[pɪn], (Verb)

Definitions:
- attach or fasten with a pin or pins
(e.g: he pinned the badge on to his lapel)

- hold (someone) firmly in a specified position so they are unable to move
(e.g: she was standing pinned against the door)

- hinder or prevent (a piece or pawn) from moving because of the danger to a more valuable piece standing behind it along the line of an attack
(e.g: the black rook on e4 is pinned)


Phrases:
- as neat as a pin
- be able to hear a pin drop
- for two pins
- pin one's ears back
- pin one's hopes on

Origin:
late Old English pinn, of West Germanic origin; related to Dutch pin ‘pin, peg’, from Latin pinna ‘point, tip, edge’

[pɪn], (Noun)

Definitions:
- an identifying number allocated to an individual by a bank or other organization and used for validating electronic transactions


Phrases:

Origin:
1970s: short for personal identification number