definition of
grievance

[1] #1 grievance n. [grudge, score] a resentment strong enough to justify retaliation; "holding a grudge"; "settling a score". wn

[2] #2 grievance n. an allegation that something imposes an illegal obligation or denies some legal right or causes injustice. wn

[3] #3 grievance n. a complaint about a (real or imaginary) wrong that causes resentment and is grounds for action. wn