spare
How to Use Spare
Learner’s notesIn plain EnglishKept in reserve, or lean/thin — as a verb, to show mercy or to give up something you have to offer.
Word Forms
sparer comparative, spared past tense, spares plural, spare plural, spared plural, Spares plural, spares singular, spare singular, spared singular, sparest singular, sparedst singular, spareth singular, sparest superlative
Fill the Gap
Can you complete this real example?
He always carries a _____ key in his wallet.
Etymology
From Old English spær, meaning "sparing" or "scant," from a Germanic root related to frugality.