The Oxford Thesaurus An A-Z Dictionary of Synonyms - sermonn.

1) lecture, lesson, preaching, reprimand, reproach, reproof, remonstration, remonstrance, scolding, harangue, Colloq talking-to, dressing-down: Mother gave me a long sermon last night about getting home late. 2) homily, address, exhortation, lesson, lecture, speech, talk, discourse: We thought that Father Keiller's sermon on vanity was especially appropriate.