*spare¹/spɛr; speə/ adj 1 spare key/tyre etc a key, tyre etc that you have in addition to the one you usually use so that it is available if it is needed 备用钥匙/轮胎等 2 not being used by anyone and therefore available 多余的，剩下的，空余的: a spare bedroom 空卧房 3 spare time time when you are not working 闲暇: I play tennis in my spare time. 我闲下来时会打网球。