1 a way or manner in which a thing is done; a method of procedure.
2 a prevailing fashion or custom.
3 Computing a way of operating or using a system (print mode).
4 Statistics the value that occurs most frequently in a given set of data.
5 Mus. a each of the scale systems that result when the white notes of the piano are played consecutively over an octave (Lydian mode). b each of the two main modern scale systems, the major and minor (minor mode).
6 Logic a the character of a modal proposition. b = MOOD(2).
7 Physics any of the distinct kinds or patterns of vibration of an oscillating system.
8 US Gram. = MOOD(2).
Etymology: F mode and L modus measure
Useful english dictionary. 2012.