Fourteenth \Four"teenth`\, a. [Cf. OE. fourtende, fourtethe, AS. fe['o]werteo[eth]a.]

1. Next in order after the thirteenth; as, the fourteenth day of the month.

2. Making or constituting one of fourteen equal parts into which anything may be derived.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Fourteenth \Four"teenth`\, n.

1. One of fourteen equal parts into which one whole may be divided; the quotient of a unit divided by fourteen; one next after the thirteenth.

2. (Mus.) The octave of the seventh.

Source: Webster's Revised Unabridged Dictionary (1913)