Spare meaning : The act of sparing; moderation; restraint. Parsimony; frugal use. An opening in a petticoat or gown; a placket. That which has not been used or expended. A spare part, especially a spare tire. A superfluous or second-best person, specially (in a dynastic context) in the phrase "An heir and a spare". The right of bowling again at a full set of pins, after having knocked all the pins down in less than three bowls. If all the pins are knocked down in one bowl it is a double spare; in two bowls, a single spare. The act of knocking down all remaining pins in second ball of a frame; this entitles the pins knocked down on the next ball to be added to the score for that frame. A free period; a block of school during which one does not have a class. Scant; not abundant or plentiful. Sparing; frugal; parsimonious; not spending much money. Being more than what is necessary, or what must be used or reserved; not wanted, or not used; superfluous. Held in reserve, to be used in an emergency. Lean; lacking flesh; meager; thin; gaunt. Very angry; frustrated or distraught. Slow.