A person who coerces; someone who forces another person to act against their will.
From coerce + -er (agent suffix forming nouns for 'one who does'), literally 'one who coerces.'
The distinction between a 'coercer' and other agents of force matters in law and philosophy—a mugger is a coercer, but so is an authority figure threatening punishment, making this word central to debates about power and legitimacy.
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