Twelfth can mean:
*The
Twelfth Amendment to the United States Constitution
The Twelfth Amendment (Amendment XII) to the United States Constitution provides the procedure for electing the president and vice president. It replaced the procedure provided in Article II, Section 1, Clause 3, by which the Electoral Colleg ...
*
The Twelfth, 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 ...
; as in the item in an order twelve places from the beginning, following the eleventh and preceding the thirteenth
* 1/12, a
vulgar fraction
A fraction (from la, fractus, "broken") represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight ...
, one part of a unit divided equally into twelve parts
Music
* The
note
Note, notes, or NOTE may refer to:
Music and entertainment
* Musical note, a pitched sound (or a symbol for a sound) in music
* ''Notes'' (album), a 1987 album by Paul Bley and Paul Motian
* ''Notes'', a common (yet unofficial) shortened versio ...
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 ha ...
(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 ...
, a Roman coin worth 12th of an
As
See also
*
12 (number)
12 (twelve) is the natural number following 11 and preceding 13. Twelve is a superior highly composite number, divisible by 2, 3, 4, and 6.
It is the number of years required for an orbital period of Jupiter. It is central to many systems ...
*
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 ...
*
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 octave p ...
{{disambiguation