See harangue in Webster's New World Roget's A-Z Thesaurus II
noun
A long, violent, or blustering speech, usually of censure or denunciation:
diatribe, fulmination, jeremiad, philippic, tirade. See praise
verb
To speak in a loud, pompous, or prolonged manner:
declaim, mouth, perorate, rant, rave. See words
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