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
If you spare a thought for an unfortunate person, you make an effort to think sympathetically about them and their bad luck. Spare a thought for the nation's shopkeepers -- consumer sales slid again in May
kept in reserve especially for emergency use; "a reserve supply of food"; "a spare tire"; "spare parts"
If you spare time or another resource for a particular purpose, you make it available for that purpose. She said that she could only spare 35 minutes for our meeting He suggested that his country could not spare the troops for such an operation
save or relieve from an experience or action; "I'll spare you from having to apologize formally"
A framework for usage is defined by the standard with particulars to be defined by the application requirements
If a person or a place is spared, they are not harmed, even though other people or places have been. We have lost everything, but thank God, our lives have been spared
lacking in amplitude or quantity; "a bare livelihood"; "a scanty harvest"; "a spare diet"