noun

1. a manner or way of acting, doing, or being; method or form

2. Etymology: Fr < L modus

   customary usage, or current fashion or style, as in manners or dress
3. Geol. the actual mineral composition of an unaltered igneous rock
4. Gram. mood (sense )
5. Logic
   1. modality or the form of a proposition with reference to its modality
   2. mood (sense )
6. Metaphysics the form, or way of being, of something, as distinct from its substance
7. Music
   1. the selection and arrangement of tones and semitones in a scale, esp. any of such arrangements in medieval church music
   2. a rhythmical system of the 13th cent.
   3. either of the two forms of scale arrangement in later music ( major mode and minor mode)
8. Statistics the value, number, etc. that occurs most frequently in a given series

Etymology: ME moede < L modus, measure, manner, mode < IE base *med-, to measure: see medical