A potentate is a ruler who has great power over people.
A plenipotentiary is someone who has full power to take action or make decisions on behalf of their government in a foreign country.
An omnipotent being or entity is unlimited in its power.
Something's potency is how powerful or effective it is.
A potential event is likely to happen, is possible, or can occur.
the quality of lacking strength or power
lacking power or ability
the state of being omnipotent
having great influence
the inherent capacity for coming into being
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