noun
a persistent feeling of ill will or resentment resulting from a past insult or injury
verb
to be resentful or envious of someone's possessions or success
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She held a deep grudge against her former business partner for stealing her ideas.
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I can't believe you're still holding a grudge over that silly argument we had last week.
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Don't be such a grudge-holder, just let it go.
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The grudge between the two families had been passed down for generations.