Nouns are naming words that refer to people, places, animals, things, qualities, or ideas. The largest class of words, nouns make up the core elements in sentences. A noun can be a person like "doctor"; a place like "Canada"; an animal like "kangaroo"; a thing like "mobile"; a quality like "kindness"; or an idea like "justice". To identify nouns, look for words that name specific people, places, animals or things in sentences.