A noun is a word (other than a pronoun) used to identify any of a class of people, places, or things (common noun), or to name a particular one of these (proper noun). This english-english audio dictionary has been produced to help in the learning process of high school and college students. It has a text-to-speach application incorporated and more than 81,400 nouns with definitions that are displayed in audio. The use of headphones is recomended to hear the pronunciation of the different accents of the english language.