Twelfth can mean:
*The
Twelfth Amendment to the United States Constitution
*
The Twelfth
The Twelfth (also called Orangemen's Day) is an Ulster Protestant celebration held on 12 July. It began in the late 18th century in Ulster. It celebrates the Glorious Revolution (1688) and victory of Protestant King William III of England, W ...
, a Protestant celebration originating in Ireland
In mathematics:
* 12th, an
ordinal number
In set theory, an ordinal number, or ordinal, is a generalization of ordinal numerals (first, second, th, etc.) aimed to extend enumeration to infinite sets.
A finite set can be enumerated by successively labeling each element with the least n ...
; as in the item in an order twelve places from the beginning, following the eleventh and preceding the thirteenth
* 1/12, a
vulgar fraction, one part of a unit divided equally into twelve parts
Music
* The
note twelve
scale degree
In music theory, the scale degree is the position of a particular note on a scale relative to the tonic, the first and main note of the scale from which each octave is assumed to begin. Degrees are useful for indicating the size of intervals and ...
s from the
root
In vascular plants, the roots are the organs of a plant that are modified to provide anchorage for the plant and take in water and nutrients into the plant body, which allows plants to grow taller and faster. They are most often below the sur ...
(current note, in a chord)
** The
interval (music)
In music theory, an interval is a difference in pitch between two sounds.
An interval may be described as horizontal, linear, or melodic if it refers to successively sounding tones, such as two adjacent pitches in a melody, and vertical or h ...
(that is, gap) between the root and the twelfth note: a compound
fifth
Currency
*
Uncia (coin)
The uncia (Latin, "twelfth part") was a Roman currency worth one twelfth of an ''as''.
Republican coin
By derivation, it was also the name of a bronze coin valued at of an as made during the Roman Republic., ''A Manual of Roman Coins: from th ...
, a Roman coin worth 12th of an
As
See also
*
12 (number)
12 (twelve) is the natural number following 11 (number), 11 and preceding 13 (number), 13. Twelve is a superior highly composite number, divisible by 2 (number), 2, 3 (number), 3, 4 (number), 4, and 6 (number), 6.
It is the number of years requir ...
*
Eleventh
In music or music theory, an eleventh is the note eleven scale degrees from the root of a chord and also the interval between the root and the eleventh. The interval can be also described as a compound fourth, spanning an octave plus a f ...
*
Thirteenth
In music or music theory, a thirteenth is the note thirteen scale degrees from the root of a chord and also the interval between the root and the thirteenth. The interval can be also described as a compound sixth, spanning an octa ...
{{disambiguation