One of The Greatest Speeches Ever by President Obama | Best Eye Opening Speech

To make someone or something different or to become different. It can also mean to stop using one thing and start using another, such as putting on different clothes.

To go in front of a group of people to show them the way to a place. It also means to be in control of a group, a team, or an activity.

To move behind someone or something in the same direction. It also means to obey rules, instructions, or to understand the logic of an argument or story.

To give food or drink to someone, typically in a restaurant or at a meal. It also means to help a customer in a shop or to perform a duty for a person or organization.