seven: the cardinal number that is the sum of six and one
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
strike: (baseball) a pitch that the batter swings at and misses, or that the batter hits into foul territory, or that the batter does not swing at but the umpire judges to be in the area over home plate and between the batter's knees and shoulders