1. to give lessons or instruction to someone; to help someone learn
Usage: third person singular present tense of ‘teach’
2. to show or demonstrate how to do something
3. to cause someone to learn or understand something through experience

Examples

• She teaches math at the local high school.
• My father teaches me how to drive every weekend.
• The program teaches students basic computer skills.
• Experience teaches us valuable lessons about life.
• He teaches piano lessons in his spare time.
• The coach teaches proper technique to all players.
• This book teaches readers about healthy eating habits.