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fourth

 - 3 dictionary results

fourth

  [fawrth, fohrth]
Use fourth in a Sentence
–adjective
1. next after the third; being the ordinal number for four.
2. being one of four equal parts.
3. Automotive. of, 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.
–noun
4. a fourth part, esp. of one ( 1/4 ).
5. the fourth member of a series.
6. Music.
a. a tone on the fourth degree from a given tone (counted as the first).
b. the interval between such tones.
c. the harmonic combination of such tones.
7. Automotive. fourth gear: She downshifted from fifth to fourth as we started up the hill.
8. (initial capital letter) Independence Day; the Fourth of July (usually prec. by the).
–adverb
9. in the fourth place; fourthly.
Origin:
bef. 950; ME fourthe, OE fēowertha. See four, -th 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To fourth
fourth   (fôrth, fōrth)   
n.  

  1. The ordinal number matching the number four in a series.

  2. One of four equal parts.

  3. Music

    1. A tone four degrees above or below a given tone in a diatonic scale.

    2. The interval between two such tones.

    3. The harmonic combination of these tones.

    4. The subdominant of a scale or key.

  4. The transmission gear or gear ratio used to produce forward speeds next higher to those of third in a motor vehicle.

  5. Fourth The Fourth of July; Independence Day. Used with the: went to a parade on the Fourth.


[Middle English fourthe, from Old English fēortha; see kwetwer- in Indo-European roots.]
fourth adv. & adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Medical Dictionary

fourth (fôrth)
adj.

  1. Coming after third, as in order, place, rank, time, or quality.

  2. Being the digit that is next to and on the outermost side of the third digit, as on a foot.

fourth n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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