**Fourth** (?), a. [OE. *fourthe*, *ferthe*, *feorthe*, AS. *feor&edh;a*, fr. *feower* four.]

**1.**

Next in order after the third; the ordinal of four.

**2.**

Forming one of four equal parts into which anything may be divided.

© Webster 1913.

**Fourth**, n.

**1.**

One of four equal parts into which one whole may be divided; the quotient of a unit divided by four; one coming next in order after the third.

**2.** Mus.

The interval of two tones and a semitone, embracing four diatonic degrees of the scale; the subdominant of any key.

The Fourth, specifically, un the United States, the fourth day of July, the anniversary of the declaration of American independence; as, to celebrate *the Fourth**.
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*© Webster 1913.*