spare tire

:  to forbear to destroy, punish, or harm

:  to refrain from attacking or reprimanding with necessary or salutary severity

:  to relieve of the necessity of doing or undergoing something

:  not being used

:  held for emergency use

:  being over and above what is needed :  superfluous

:  a spare tire

:  a duplicate (such as a key or a machine part) kept in reserve

:  the knocking down of all 10 pins with the first 2 balls in a frame in bowling

:  to become weary

:  to exhaust or greatly decrease the physical strength of :  fatigue

:  to wear out the patience of :  bore

:  a rubber cushion that fits around a wheel (as of an automobile) and usually contains compressed air

:  a metal hoop forming the tread of a wheel

:  attire

:  a woman's headband or hair ornament

:  attire

:  to adorn (the hair) with an ornament