v a religious discourse.
2. preach ·vt to advise or recommend earnestly.
3. preach ·vt to deliver or pronounce; as, to preach a sermon.
4. preach ·vt to teach or instruct by preaching; to inform by preaching.
5. preach ·vt to inculcate in public discourse; to urge with earnestness by public teaching.
6. preach ·vt to proclaim by public discourse; to utter in a sermon or a formal religious harangue.
7. preach ·vi to give serious advice on morals or religion; to discourse in the manner of a preacher.
8. preach ·vi to proclaim or publish tidings; specifically, to proclaim the gospel; to discourse publicly on a religious subject, or from a text of scripture; to deliver a sermon.