Fifth \Fifth\, a. [OE. fifte, fifthe, AS. f[imac]fta. See Five.]

1. Next in order after the fourth; -- the ordinal of five. [1913 Webster]

2. Consisting of one of five equal divisions of a thing. [1913 Webster]

Fifth monarchy men (Hist.), a fanatical sect in England, of the time of the commonwealth, who maintained that there would be a fifth universal monarchy, during which Christ would reign on earth a thousand years.

Fifth wheel, a horizontal wheel or segment above the fore axle of a carriage and beneath the body, forming an extended support to prevent careening. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Fifth \Fifth\, a. [OE. fifte, fifthe, AS. f[=i]fta. See Five.]

1. Next in order after the fourth; -- the ordinal of five.

2. Consisting of one of five equal divisions of a thing.

Fifth monarchy men (Hist.), a fanatical sect in England, of the time of the commonwealth, who maintained that there would be a fifth universal monarchy, during which Christ would reign on earth a thousand years.

Fifth wheel, a horizontal wheel or segment above the fore axle of a carriage and beneath the body, forming an extended support to prevent careening.

Source: Webster's Revised Unabridged Dictionary (1913)