1. to give a religious speech, especially in a church service
2. to give advice or express opinions in a way that annoys people
Usage: often disapproving
3. to publicly support or recommend an idea or way of behaving

Examples

• The minister preaches every Sunday morning.
• She preached about forgiveness and redemption.
• Stop preaching to me about how I should live my life.
• He’s always preaching about the importance of exercise.
• The activist preached nonviolence throughout his career.
• My parents used to preach the value of hard work.
• The coach preached teamwork to his players.