n (music) An interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch.
n (fencing) The eighth defensive position, with the sword hand held at waist height, and the tip of the sword out straight at knee level.
n (Christianity) The day that is one week after a feast day in the Latin Rite of the Catholic Church.
n (Christianity) An eight day period beginning on a feast day in the Latin Rite of the Catholic Church.