Fourth
a.
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Next in order after the third; the ordinal of four.
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Forming one of four equal parts into which anything may be divided.
Fourth
n.
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One of four equal parts into which one whole may be divided; the quotient of a unit divided by four.
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The interval of two tones and a semitone, embracing four diatonic degrees of the scale; the subdominant of any key. (Mus.)
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One coming next in order after the third.
Phrases & Compounds
- The Fourth
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specifically, in the United States, the fourth day of July, the anniversary of the declaration of American independence; as, to celebrate the Fourth.