WordReference Random House Learner's Dictionary of American English © 2025fourth /fɔrθ/USA pronunciation
adj.
- next after the third;
being the ordinal number for four.
- being one of four equal parts.
- Automotiverelating to the gear transmission ratio at which the drive shaft speed is greater than that of third gear.
n.
- [countable] a fourth part, esp. of one (¼);
quarter.
- [countable] the fourth member of a series.
- Automotive[uncountable] fourth gear.
- the Fourth, Independence Day;
the Fourth of July.
adv.
- in the fourth place.
fourth•ly, adv.
WordReference Random House Unabridged Dictionary of American English © 2025fourth
(fôrth, fōrth),USA pronunciation adj.
- next after the third;
being the ordinal number for four.
- being one of four equal parts.
- Automotiveof, pertaining 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.
n.
- a fourth part, esp. of one (¼).
- the fourth member of a series.
- Music and Dance
- 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.
- Automotivefourth gear:She downshifted from fifth to fourth as we started up the hill.
- (cap.) Independence Day;
the Fourth of July (usually prec. by the).
adv.
- in the fourth place;
fourthly.
- Middle English fourthe, Old English fēowertha. See four, -th2 bef. 950
Collins Concise English Dictionary © HarperCollins Publishers::
fourth / fɔːθ/ (usually prenominal)- 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 interval between one note and another four notes away from it counting inclusively along the diatonic scale
- one of two notes constituting such an interval in relation to the other
See also perfect9, interval5, diminished2 - the fourth forward ratio of a gearbox in a motor vehicle
- a less common word for quarter2
also: fourthly - after the third person, position, event, etc
also: fourthly - as the fourth point: linking what follows with the previous statements, as in a speech or argument
'fourth month' also found in these entries (note: many are not synonyms or translations):