- 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.
verb (used with object), pinned, pin·ning.
- 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.
verb (used without object), pinned, pin·ning.
- 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 for 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
Example sentences from the Web for pinning
But Khin Mar Cho is pinning her hopes on the international community.
He often made the compositions by pinning the pieces of paper he had cut directly onto the walls around him.
Team Obama is pinning its hopes on early voters; Team Romney is banking on high turnouts Nov. 6.Hurricane Sandy, Women, Momentum & More Keys to a Romney Victory|Mark McKinnon|October 29, 2012|DAILY BEAST
I think for Obama, pinning Romney down on his tax plan is key.
Amidst “all of this pinning and mapping,” Ben confesses to dread and hopelessness.Jonathan Evison’s On the Road: ‘The Revised Fundamentals of Caregiving’|Kevin Canfield|September 14, 2012|DAILY BEAST
"All right, but it is the dead ones I'm after," the reporter said, taking the paper and pinning it to his notes.The Cottage of Delight|Will N. Harben
Why, it was on his pitching that the whole Milburn school was pinning its faith in the coming game against Leighton Academy.The Story of Leather|Sara Ware Bassett
One of the internes wasn't half bad, so I kept the nurse busy combing my adopted hair and pinning it on becomingly.Letters of a Dakota Divorcee|Jane Burr
Pin the middle of the pattern to the goods and smooth towards each end, pinning securely at top and bottom.Textiles and Clothing|Kate Heintz Watson
There was a grimness in Bindle's voice that caused Mrs. Bindle to pause in the process of pinning a brooch in her bodice.Adventures of Bindle|Herbert George Jenkins
British Dictionary definitions for pinning (1 of 2)
n acronym for
British Dictionary definitions for pinning (2 of 2)
- 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
verb pins, pinning or pinned (tr)
Word Origin for pin
Medical definitions for pinning
Idioms and Phrases with pinning
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