grudge
1. [ noun ] a resentment strong enough to justify retaliation
Synonyms: grievance score
Examples:

"holding a grudge" "settling a score"

Related terms: resentment stew
2. [ verb ] bear a grudge; harbor ill feelings
Synonyms: stew
Related terms: resent
3. [ verb ] accept or admit unwillingly
Related terms: resent
Similar spelling:   grudging