twelfth Meaning, Definition & Usage

  1. noun position 12 in a countable series of things
  2. noun one part in twelve equal parts
    duodecimal; twelfth part; one-twelfth.
  3. adjective satellite coming next after the eleventh and just before the thirteenth in position
    12th.

WordNet

Twelfth adjective
Etymology
For twelft, OE. twelfte, AS. twelfta. See Twelve.
Definitions
  1. Next in order after the eleventh; coming after eleven others; -- the ordinal of twelve.
  2. Consisting, or being one of, twelve equal parts into which anything is divided.
Twelfth noun
Definitions
  1. The quotient of a unit divided by twelve; one of twelve equal parts of one whole.
  2. The next in order after the eleventh.
  3. (Mus.) An interval comprising an octave and a fifth.

Webster 1913