Past Tense:
* The firefighters spared no effort to save the burning building. (Meaning they put in all their energy and effort)
* Despite the terrible storm, our house was spared any damage. (Meaning it was not affected)
* She spared him the details of her illness, not wanting to worry him. (Meaning she avoided telling him)
Past Participle:
* The spared money will be used to fund the new library. (Meaning the money was saved or not used)
* I spared myself a lot of pain by avoiding that relationship. (Meaning I made a decision to prevent hardship)
* He spared a moment to talk to the old woman on the street. (Meaning he made time for her)
Other Uses:
* "I don't know how I spared you," she whispered, her voice strained. (Meaning she could have caused harm but chose not to)
* The doctor spared no time in diagnosing the patient's condition. (Meaning he acted quickly)
The meaning of "spared" depends on the context. It can mean to save, avoid, or refrain from doing something.