- next after the third; being the ordinal number for four.
- being one of four equal parts.
- Automotive. of, relating to, or operating at the gear transmission ratio at which the drive shaft speed is greater than that of third gear for a given engine crankshaft speed, but not so great as that of fifth gear, if such exists: fourth gear.
- a fourth part, especially of one (¼).
- the fourth member of a series.
- a tone on the fourth degree from a given tone (counted as the first).
- the interval between such tones.
- the harmonic combination of such tones.
- Automotive. fourth gear: She downshifted from fifth to fourth as we started up the hill.
- (initial capital letter) Independence Day; the Fourth of July (usually preceded by the).
- in the fourth place; fourthly.
Origin of fourth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for fourth
A fourth suspect, a 26-year-old woman named Hayat Boumeddiene, remains at large.France Kills Charlie Hebdo Murderers
January 9, 2015
But in more middle-class and working-class neighborhoods, sessions are typically a fourth of that price.Iran’s Becoming a Footloose Nation as Dance Lessons Spread
January 2, 2015
He won re-election twice as governor of New York, and had the hubris to run for a fourth term before being defeated in 1994.Mario Cuomo, a Frustrating Hero to Democrats, Is Dead at 82
January 2, 2015
He lost his bid for a fourth term to George Pataki that year.President Cuomo Would’ve Been a Lion
January 2, 2015
They constantly break the fourth wall, yelling and complaining to the cameramen.James Franco and Seth Rogen Get ‘Naked and Afraid’… And It’s Hilarious
December 8, 2014
On the fourth and fifth days, however, he had the reward for his caution.Way of the Lawless
He was the head of the school when I, the elder, was a lout in the lower fourth.Viviette
William J. Locke
The "missing fourth side" of the room is a commonplace recognized by all.The Dramatic Values in Plautus
Wilton Wallace Blancke
It should not be a tomb save as upon the fourth day the sepulchre in the garden!Weighed and Wanting
Look here; he ain't that Roberts from the big store on Fourth Street?Ester Ried Yet Speaking
- coming after the third in order, position, time, etc. Often written: 4th
- (as noun)the fourth in succession
- denoting the fourth forward ratio of a gearbox in motor vehicles
- the fourth forward ratio of a gearbox in a motor vehiclehe changed into fourth as soon as he had passed me
- a less common word for quarter (def. 2)
- after the third person, position, event, etc
- as the fourth point: linking what follows with the previous statements, as in a speech or argument
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for fourth
Online Etymology Dictionary, © 2010 Douglas Harper
- Coming after third, as in order, place, rank, time, or quality.
- Being the digit that is next to and on the outermost side of the third digit, as on a foot.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.