A person who intentionally instigates, incites, or starts something, especially one that creates trouble.
Near-synonyms: see Thesaurus:troublemaker
From Latin īnstīgātor (“stimulator”), from īnstīgāre (present infinitive of īnstīgō (“to incite, set on, stimulate, rouse or urge”), possibly from Proto-Indo-European *(s)teyg- (“to be sharp, to stab;...
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