a fourth part; one of four equal or corresponding parts; a point of time 15 minutes before or after any hour; to place (soldiers) in lodgings
one of four equal parts
Cases of word usage
1) (something shaped like) the curve of the moon in the first quarter (especially a row of houses) (crescent)
2) a black-headed note with a stem, half of a minim (US = quarter note) (crotchet)
3) a quarter of a circle or its circumstance; an instrument shaped like a quarter of a circle, for measuring angles in astronomy and navigation (quadrant)