plural 45s, 45's. a seven-inch phonograph record played at 45 r.p.m., especially a popular-music single: She’s in the market for a phonograph so she can play her grandfather’s mint collection of 45s from the 1960s.
an identifier of or nickname for Donald Trump, the 45th U.S. president, alternately used with disparaging intent by opponents and with affection by supporters.
Other definitions for .45 (2 of 2)
a pistol, revolver, or cartridge of .45-caliber, or having a diameter of .45 inch.
- Also forty-five .
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use 45 in a sentence
She had called and invited me over, I was not late and was only there approximately 45 minutes to an hour.
Edison Research’s Podcast Consumer Tracker discovered a 30-minute uptick in listening times, to 6 hours 45 minutes per week.With travel podcasts, explore the world through your ear buds | Andrea Sachs | December 11, 2020 | Washington Post
For one thing, Aithinne says, “What we have a lot here, at least in the central part of the US, are flights that are 45 minutes to two hours.”COVID-19 continues to make flying a risky proposition | Kat Eschner | October 21, 2020 | Popular-Science
By March 16, 45 volunteers were rolling up their sleeves to participate in a phase I clinical trial, meant to establish whether the vaccine is safe.
One winter, minus 45 degrees Fahrenheit was the warmest it ever got for an entire month.He Found ‘Islands of Fertility’ Beneath Antarctica’s Ice | Steve Nadis | July 20, 2020 | Quanta Magazine
He qualified as “sharpshooter” on the M1911A1-45 ACP handgun in 1994.The (Sloppy) Swift-Boating of Michigan Democrat Gary Peters | Tim Mak | October 13, 2014 | THE DAILY BEAST
In the tropical magnificence of Tasso's stanzas there is a sultry stupor which the fresh sunlight-45- of the Furioso never sheds.Renaissance in Italy: Italian Literature | John Addington Symonds
A Colts-45 was not a joke; its mechanism had not been connived in any spirit of facetiousness.The Sunset Trail | Alfred Henry Lewis
Then, in the third-45- place, it must be straight to the point, and directly called for as an illustration of the case in hand.Social Life | Maud C. Cooke
After two marches the temperature fell to-45°, and it was very cold in the small silk tent.From Pole to Pole | Sven Anders Hedin
I just cast about.-45- But I know a frightful lot of painters.Marriage | H. G. Wells