Main Difference
The main difference between Pen and Pin is that the Pen is a writing implement and Pin is a fastening device; device used for fastening objects or material together; often has two components: a long body and sharp tip made of steel, or occasionally copper or brass, and a larger head often made of plastic.
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Pen
A pen is a writing instrument used to apply ink to a surface, usually paper, for writing or drawing. Historically, reed pens, quill pens, and dip pens were used, with a nib dipped in ink. Ruling pens allow precise adjustment of line width, and still find a few specialized uses, but technical pens such as the Rapidograph are more commonly used. Modern types include ballpoint, rollerball, fountain and felt or ceramic tip pens.
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Pin
A pin is a device used for fastening objects or material together. Pins often have two components: a long body and sharp tip made of steel, or occasionally copper or brass, and a larger head often made of plastic. The sharpened body penetrates the material, while the larger head provides a driving surface. It is formed by drawing out a thin wire, sharpening the tip, and adding a head. Nails are related, but are typically larger. In machines and engineering, pins are commonly used as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts.
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Pen (noun)
An enclosed area used to contain domesticated animals, especially sheep or cattle.
“There are two steers in the third pen.”
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Pen (noun)
A prison cell.
“They caught him with a stolen horse, and he wound up in the pen again.”
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Pen (noun)
The bullpen.
“Two righties are up in the pen.”
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Pen (noun)
A tool, originally made from a feather but now usually a small tubular instrument, containing ink used to write or make marks.
“He took notes with a pen.”
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Pen (noun)
A writer, or his style.
“He has a sharp pen.”
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Pen (noun)
Marks of ink left by a pen.
“He’s unhappy because he got pen on his new shirt.”
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Pen (noun)
A light pen.
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Pen (noun)
The internal cartilage skeleton of a squid, shaped like a pen.
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Pen (noun)
A feather, especially one of the flight feathers of a bird, angel etc.
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Pen (noun)
A wing.
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Pen (noun)
A female swan.
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Pen (noun)
penalty
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Pen (verb)
To enclose in a pen.
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Pen (verb)
To write (an article, a book, etc.).
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Pin (noun)
A sewing pin or ballhead pin: a needle without an eye (usually) made of drawn-out steel wire with one end sharpened and the other flattened or rounded into a head, used for fastening.
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Pin (noun)
A small nail with a head and a sharp point.
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Pin (noun)
A cylinder often of wood or metal used to fasten or as a bearing between two parts.
“Pull the pin out of the grenade before throwing it at the enemy.”
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Pin (noun)
The victory condition of holding the opponent’s shoulders on the wrestling mat for a prescribed period of time.
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Pin (noun)
A slender object specially designed for use in a specific game or sport, such as skittles or bowling.
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Pin (noun)
(in plural pins; informal) A leg.
“I’m not so good on my pins these days.”
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Pin (noun)
Any of the individual connecting elements of a multipole electrical connector.
“The UK standard connector for domestic mains electricity has three pins.”
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Pin (noun)
A piece of jewellery that is attached to clothing with a pin.
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Pin (noun)
A simple accessory that can be attached to clothing with a pin or fastener, often round and bearing a design, logo or message, and used for decoration, identification or to show political affiliation, etc.
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Pin (noun)
A moving a lesser piece to escape from attack would expose a more valuable piece to attack.
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Pin (noun)
The flagstick: the flag-bearing pole which marks the location of a hole
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Pin (noun)
The spot at the exact centre of the house (the target area)
“The shot landed right on the pin.”
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Pin (noun)
A mood, a state of being.
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Pin (noun)
One of a row of pegs in the side of an ancient drinking cup to mark how much each person should drink.
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Pin (noun)
caligo
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Pin (noun)
A thing of small value; a trifle.
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Pin (noun)
A peg in musical instruments for increasing or relaxing the tension of the strings.
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Pin (noun)
A short shaft, sometimes forming a bolt, a part of which serves as a journal.
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Pin (noun)
The tenon of a dovetail joint.
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Pin (noun)
A size of brewery cask, equal to half a firkin, or eighth of a barrel.
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Pin (noun)
A pinball machine.
“I spent most of my time in the arcade playing pins.”
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Pin (verb)
To fasten or attach (something) with a pin.
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Pin (verb)
To cause (a piece) to be in a pin.
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Pin (verb)
To pin down (someone).
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Pin (verb)
To enclose; to confine; to pen; to pound.
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Pin (verb)
To attach (an icon, application, etc.) to another item.
“to pin a window to the Taskbar”
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Pin (verb)
To modified.
“When marshaling data, the interop marshaler can copy or pin the data being marshaled.”
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Pin (verb)
alternative form of peen
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Pen (noun)
an instrument for writing or drawing with ink, typically consisting of a metal nib or ball, or a nylon tip, fitted into a metal or plastic holder.
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Pen (noun)
the occupation of writing
“she was forced to support herself by the pen”
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Pen (noun)
an electronic device like a pen, used in conjunction with a writing surface to enter commands or data into a computer.
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Pen (noun)
the tapering cartilaginous internal shell of a squid.
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Pen (noun)
a small enclosure in which sheep, pigs, or other farm animals are kept
“a sheep pen”
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Pen (noun)
a number of animals in or sufficient to fill a pen
“a pen of twenty-five Cheviots”
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Pen (noun)
any small enclosure in which someone or something can be confined
“she took the baby out of the pen and played with it”
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Pen (noun)
a covered dock for a submarine or other warship
“U-boat pens”
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Pen (noun)
(in the West Indies) a farm or plantation.
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Pen (noun)
a female swan.
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Pen (noun)
short for penitentiary (sense 1)
“you could get twenty years in a federal pen for shooting your mouth off like that”
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Pen (verb)
write or compose
“Olivia penned award-winning poetry”
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Pen (verb)
put or keep (an animal) in a pen
“it was the practice to pen the sheep for clipping”
“these cattle need to be penned in at night”
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Pen (verb)
confine someone in a restricted space
“they had been penned up day and night in the house”
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Pin (noun)
an identifying number allocated to an individual by a bank or other organization and used for validating electronic transactions.
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Pin (verb)
attach or fasten with a pin or pins
“her hair was pinned back”
“he pinned the badge on to his lapel”
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Pin (verb)
hold (someone) firmly in a specified position so they are unable to move
“Richards pinned him down until the police arrived”
“she was standing pinned against the door”
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Pin (verb)
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
“the black rook on e4 is pinned”