something useful, helpful or likely to bring success, especially in competition with others

benefit, favored position or circumstance

the (legal) power or right to control, give others and make others obey

power, control

the power or authority to direct, order or restrain

command, mastery

the state of being dominant

supremacy

having or producing great power

strong, effective

(in card-games) each card of a suit that has been declared as having higher value

advantage

(an instance, occasion, of) success (in war, a contest, game etc)

win, success