fifteenth Meaning, Definition & Usage

  1. noun position 15 in a countable series of things
  2. adjective satellite coming next after the fourteenth and just before the sixteenth in position
    15th.

WordNet

Fif"teenth` adjective
Etymology
OE. fiftenthe; cf. fiftethe, AS. fiftea. See Fifteen.
Definitions
  1. Next in order after the fourteenth; -- the ordinal of fifteen.
  2. Consisting of one of fifteen equal parts or divisions of a thing.
Fif"teenth` noun
Definitions
  1. One of fifteen equal parts or divisions; the quotient of a unit divided by fifteen.
  2. A species of tax upon personal property formerly laid on towns, boroughs, etc., in England, being one fifteenth part of what the personal property in each town, etc., had been valued at. Burrill.
  3. (Mus.) (a) A stop in an organ tuned two octaves above the diaposon. (b) An interval consisting of two octaves.

Webster 1913