n.
    - a way in which something occurs or is done:![]()  his preferred mode of travel was a bike. ▸Computing  a way of operating a system. ▸Physics  any of the kinds or patterns of vibration of an oscillating system. ▸Logic  the character of a modal proposition. ▸Logic  & Grammar  another term for mood2. 
- a style in clothes, art, etc.
- Statistics  the value that occurs most frequently in a given data set.
- Music  a set of notes forming a scale, from which melodies and harmonies are constructed.
Etymology
  ME (in the musical and grammatical senses): from L. modus ‘measure’; cf. mood2.