verb

• (intransitive) To speak in the manner of a sermon; to preach; to propagate one's morality or opinions with speech.
• (transitive) To preach a sermon to (somebody); to give (somebody) instruction or admonishment on the basis of one's morality or opinions.
• (transitive) To say in the manner of a sermon or lecture.
• (intransitive) To inculcate rigid rules.