What is an 'open bar'?

What is an 'open bar'?

Charlie Scola (Event Planner, Charlie Scola Catering) gives expert video advice on: What is the 'table presentation' of my party?; What should I consider when choosing table coverings for my party?; Should I use cloth or paper table coverings at my party? and more...

An 'open bar' is considered a bar where your guests don't pay, and usually it has a variety of alcohol and a variety of mixed drinks. But no one exchanges cash.