a : the maintenance or administration of what is just especially by the impartial adjustment of conflicting claims or the assignment of merited rewards or punishments meting out justice social justice
b : judge a supreme courtjustice —used as a title JusticeMarshall
c : the administration of law a fugitive from justice; especially : the establishment or determination of rights according to the rules of law or equity a system of justice
2a : the quality of being just, impartial, or fair questioned the justice of the their decision
b (1) : the principle or ideal of just dealing or right action
(2) : conformity to this principle or ideal : righteousness the justiceof their cause
c : the quality of conforming to law
3: conformity to truth, fact, or reason : correctness