Let's learn about the related words. tip:a small amount of People extra money in the that you give restaurant. to a server waiter because of the waitress service give sb.a tip server:a person who serves(v. leave a tip food or offers service(n.in a restaurantL单e击t此’s处l添e加ar标n题about the related words. waiter waitress server:a person who serves(v.) food or offers service(n.) in a restaurant tip：a small amount of extra money that you give to a server because of the service give sb.a tip leave a tip People in the restaurant