Define do. do synonyms, do pronunciation, do translation, English dictionary definition of do. to perform an act, duty, or role: Do nothing until you hear from me. What does do mean in English? Definition, example sentences, pronunciation, and CEFR level. To perform an action, task, or duty. The meaning of DO is to bring to pass : carry out. How to use do in a sentence. span class='mwtparahw' Feasible /span and span class='mwtparahw' Doable /span The best things to do in Los Angeles that we’ve visited, including cool museums, stair hikes, must-try restaurants and the best beaches DO definition: 1. used with another verb to form questions and negative sentences, including negative orders, and…. Learn more. DO definition: 1. used with another verb to form questions and negative phrases: 2. used in a phrase at the end…. Learn more. Find out the differences between an MD and DO, and discover the pros, cons, risks, and benefits, and how it may affect health. 51 meanings: 1. to perform or complete (a deed or action) 2. to serve the needs of; be suitable for (a person, situation, etc);. Click for more definitions. Today, you'll learn how to use DO, DOES, DID, and DONE in English. Improve your English fluency by learning everything you need to know about the verb TO DO. DO definition: to perform (an act, duty, role, etc.). See examples of do used in a sentence.