n. 25B6; noun
she is seeking revenge : VENGEANCE, retribution, retaliation, reprisal, requital, recrimination, an eye for an eye (and a tooth for a tooth), redress, satisfaction.
they were filled with revenge : VENGEFULNESS, vindictiveness, vitriol, spite, spitefulness, malice, maliciousness, malevolence, ill will, animosity, hate, hatred, rancour, bitterness; poetic/literary maleficence.
25B6; verb
he revenged his brother's murder : AVENGE, take/exact revenge for, exact retribution for, take reprisals for, get redress for, get satisfaction for.
I'll be revenged on the whole pack of you : TAKE REVENGE ON, get one's revenge on, avenge oneself on, take vengeance on, get even with, settle a/the score with, pay back, take reprisals against; informal get one's own back on; archaic give someone a Roland for an Oliver.