ABSTRACT
Apart from the 'real' nouns – words referring to things, places, people or ideas – words belonging to other categories can often be used grammatically as nouns, as subjects or objects of verbs. Many adjectives can be nouns as well, and all of them become plural nouns by adding the plural suffixes. Nouns can be a single word or a combination of simple noun + either prefixes / suffixes or other words. The boundaries between word categories can often be blurred in languages, and Persian is no exception. Many adjectives can be used as nouns also, just as almost all adjectives can be used as adverbs. There is a universal plural ending in Persian that can be used for all the nouns, and there is another one with some limitations in usage, and then there are some Arabic plurals.
