(music) A tonal scale used in most forms of Western music.

A scale on the stem of a plant that turns into a leaf.

(music) A minor hexatonic scale originating in the American musical genre blues, consisting of tonic, minor third, fourth, diminished fifth, fifth, and minor seventh, in which notes, particularly the minor third, fourth, diminished fifth, and minor seventh may be bent. It can also be called the minor blues scale when distinguishing it from its only other functional mode the major blues scale.

(music) Any diatonic scale whose first, third, and fifth scale degrees form a minor triad. / (music) The natural minor scale.

(astronomy) a scale of seeing conditions used by amateur astronomers.

A value on the Richter scale

(seismology) a logarithmic scale used to express the energy released by an earthquake, each increase of 1 representing a 32-fold increase in energy.

A series of events used as a rough measure of duration.

(music) A scale having five notes per octave.

A ladder for the purpose of scaling the walls of a besieged fortification.