Definition of attain verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Define attain. attain synonyms, attain pronunciation, attain translation, English dictionary definition of attain. v. at·tained , at·tain·ing , at·tains v. tr. 1. To gain as an objective; achieve: attain a diploma by hard work. 2. To come to or arrive at, as through. ATTAIN definition: to reach, achieve, or accomplish; gain; obtain. See examples of attain used in a sentence. 3 meanings: 1. to achieve or accomplish (a task, goal, aim, etc) 2. to reach or arrive at in space or time 3. to arrive (at). Click for more definitions. ATTAIN definition: 1. to reach or succeed in getting something: 2. to reach or succeed in getting something: 3. to…. Learn more. attain (verb) attain /ə ˈ teɪn/ verb attains; attained; attaining Britannica Dictionary definition of ATTAIN [+ object] somewhat formal 1 : to accomplish or achieve (something) : to succeed in getting or doing (something) The meaning of ATTAIN is to reach as an end : gain, achieve. How to use attain in a sentence. attain (third-person singular simple present attains, present participle attaining, simple past and past participle attained) (transitive) To come to or reach (a place) by motion or progression. Looking for definition of Attain? Attain explanation. Define Attain by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, Medical Dictionary, Dream Dictionary. The verb attain is all about reaching some mark of achievement. You can attain a goal. You can even attain a destination.