n an extra component of a machine or other apparatus
n an extra car wheel and tire for a four-wheel vehicle
n a score in tenpins; knocking down all ten after rolling two balls
v refrain from harming
v save or relieve from an experience or action
v give up what is not strictly needed
v use frugally or carefully
v furnish with spars
v fight with spurs
v box lightly
v fight verbally