Present participle of harangue; currently delivering a long, forceful speech or tirade to someone.
From 'harangue' plus the present participle suffix '-ing.' The gerund form allowing the action to be used as a noun or verb.
Politicians are famous for haranguing—the act of delivering passionate, lengthy speeches. It's different from just 'talking' because haranguing implies energy, force, and a desire to persuade or provoke!
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