whip hand (noun) ascendancy/ascendency: domination
Sinonime: advantage,
authority,
command,
control,
dominance,
dominion,
edge,
influence,
jump*, leg up,
mastery, on top,
power, predominance, preeminence, prepotence,
prevalence,
reign,
rule,
sovereignty,
superiority,
supremacy,
sway, upper hand, whip hand
Antonime: decline, inferiority, powerlessness, subordination