You probably know the word back. But did you know that it can be used as a noun, verb, adjective, adverb, and a phrasal verb In this lesson, youll learn to use this very common word in each of these ways. The English language has many words that can have different meanings. Ill explain how this simple word can take on many different meanings, and Ill give you examples to help you understand each of them. Youll also learn expressions with the word back. So dont hold back, and dont back out. Check out this video