The outermost or largest diameter of something that has multiple circular, cylindrical, or helical features (e.g. a screw or gear)

The 22 trumps of a deck of tarot cards.

One who conducts and commands a marching band.

(astronomy) A large circumpolar constellation of the northern sky, said to resemble a bear. It includes the familiar asterism the Big Dipper and the stars Mizar, Dubhe, and Alkaid.

(music) Any musical chord which has the tones a major third (as opposed to a minor third) and a perfect fifth above its root, i.e. the notes of a major triad, but possibly containing other intervals, such as a seventh or ninth.

Alternative form of majordomo: chief servant of a large house; similar positions in other contexts.

Alternative form of majordomo: chief servant of a large house; a similar position in other contexts.

(astronomy) A winter constellation of the northern sky, said to resemble a dog following the hunter Orion. It includes the brightest star in the night sky, Sirius (sometimes called the Dog Star).

(music) A musical interval of the Western twelve-semitone system consisting of four semitones and spanning three degrees of the diatonic scale. Major scales are so named because of the major third interval between the tonic and mediant of a major tonic triad. It is enharmonically equivalent to a diminished fourth.

plural of major third