(music) The major key with A-flat as its tonic, consisting of the pitches A♭, B♭, C, D♭, E♭, F, and G. / (music) The major chord with a root of A-flat.

(music) the theoretical major key with A-sharp as its tonic and the notes A#, B#, C𝄪, D#, E#, F𝄪, G𝄪. Such a high number of accidentals (especially double sharps) is undesirable. Therefore, it is usually scored and referred to as its enharmonic equivalent; B-flat major.

An association of sports teams which plays at the highest skill level of its sport, especially Major League Baseball.

Of or pertaining to a major sports league; belonging to the professional level of a sport, such as US baseball. / Analogous in importance to a major league sports team. / Serious, high-level; significant

(music) The major key with B as its tonic, with the notes B, C♯, D♯, E, F♯, G♯, and A♯, the key signature of which has five sharps. / (music) The major chord with a root of B.

plural of major league

(law) A greater force; "act of God"; unavoidable accident.

(music) A musical key based upon a major scale. / (idiomatic) A mood of cheerfulness or happiness.

(idiomatic) In an unrestrained manner; on a large or expansive scale.

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