- a short metal rod, as a linchpin, driven through holes in adjacent parts, as a hub and an axle, to keep the parts together.
- 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.
- a short axle, as one on which a pulley rotates in a block.
- an axle for a sheave of a block.
- belaying pin.
- to bookmark (a photo or link) on Pinterest, a website and mobile application: He pinned a jacket from Macy's on his fashion board.
- to fix (a social media post) to the top of a feed: She pinned a tweet about her forthcoming book to the top of her Twitter feed.
- to bind or hold to a course of action, a promise, etc.
- 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.
Idioms about pin
- (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.
- (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.
Origin of pin
OTHER WORDS FROM pinre·pin, verb (used with object), re·pinned, re·pin·ning.
Words nearby pin
Other definitions for pin (2 of 2)
Origin of PIN
How to use pin in a sentence
It was a massive hit, and the safety-pin dress a brilliant cartoonish cherry on top of it.Happy 20th Birthday, Liz Hurley’s Safety-Pin Dress|Tim Teeman|December 12, 2014|DAILY BEAST
The online community of tattooed pin-up models turned 13 this year.Masters of Alt Sex: SuicideGirls Hits Puberty and Wants to Invade Your TV Set|Marlow Stern|December 9, 2014|DAILY BEAST
In other news, black and white pin-up shots are now officially less valuable than life-size Tiger Beat tear outs.Justin Bieber Isn’t Even 21, Yet Makes More Money Than Meryl Streep|Amy Zimmerman|November 25, 2014|DAILY BEAST
She had low-grade blood poisoning in her ear from the pin she used to pierce it.‘My Crazy Love’ Reveals the Craziest Lies People Tell for Love|Kevin Fallon|November 18, 2014|DAILY BEAST
Lorna planted several pin flags, then we continued cruising.Knowing Where the Bodies Are Buried: An Excerpt From 'Lives in Ruins'|Marilyn Johnson|November 14, 2014|DAILY BEAST
Though, as everybody well knew, the doctor had forbidden her to lift so much as a pin!The Awakening and Selected Short Stories|Kate Chopin
He held the pin delicately between finger and thumb, and controlled her with his roguish eyes.The Joyous Adventures of Aristide Pujol|William J. Locke
The scolex is about the size of a pin-head, and is surrounded by four sucking discs, but has no hooklets (Fig. 96).A Manual of Clinical Diagnosis|James Campbell Todd
A grain—requiring to be picked out with a pin and microscope—of truth, with a bushel of bunkum or cant.
Welcome jerked himself away from the book, whirled around on his wooden pin and pointed his knife at the book-shelves.Motor Matt's "Century" Run|Stanley R. Matthews
British Dictionary definitions for pin (1 of 3)
- a short stiff straight piece of wire pointed at one end and either rounded or having a flattened head at the other: used mainly for fastening pieces of cloth, paper, etc, esp temporarily
- (in combination)pinhole
- See belaying pin
- the axle of a sheave
- the sliding closure for a shackle
- the cylindrical part of a key that enters a lock
- the cylindrical part of a lock where this part of the key fits
Word Origin for pin
British Dictionary definitions for pin (2 of 3)
British Dictionary definitions for pin (3 of 3)
Medical definitions for pin
Other Idioms and Phrases with pin
In addition to the idioms beginning with pin
- pin back one's ears
- pin down
- pin money
- pin on
- pin one's heart on
- pin one's hopes on
- pin someone's ears back
- hear a pin drop
- on pins and needles