A noun is a word that is used to name a person, place, thing, place, or an abstract idea. It is the agent which directs the action of the verb.
Some examples of nouns in ASL are: cat, America, book, laptop, color, etc.
Some nouns are produced similar to verbs in ASL but the difference is the movement. E.g. CHAIR and SIT. The noun-verb pairs show a difference in movements, in which the noun is commonly produced with repeated, short movements whereas the verb has a longer one movement as seen in CHAIR and SIT.
Not to be confused with nouns, the movement of a verb can be repeated to indicate plural in a verb predicate.
A small number of nouns can be plural by repeating the noun, such as RULE+, MISTAKE+, ...