Quite like English, noun is the most fundamental form of word in Persian. A noun can be someone’s name, a kind of object, or an abstract concept. While it is not of much importance to know which words exactly are considered nouns, it is important to be able to use them correctly. In pronunciation, the stress of a noun is always on the last syllable. Syllables of words are usually easy to distinguish.
girl / daughter
Like English, Persian nouns have two forms; singular and plural. There are four different methods to make a noun plural. As a beginner, you must learn the first method, become familiar with the second method and simply go through the next ones just once.
1- The easiest and most common way is to use the suffix “ها”. It can be used for all nouns, including the nouns that are often pluralized in other ways. One can say that learning this method of pluralization is quite enough for a beginner.
The suffix “ها” and many similar affixes are usually written like separate words (the first letter of the suffix is not joined to the last letter of the noun) but are written closer than a normal space character’s width to the main word. This is sometimes known as a "virtual space".
2- The second way is using the "ان" suffix. Apart from one or two exceptions, this suffix can only be used for living objects and body parts. It is rarely used in colloquial Persian but is very common in writing. It is useful to keep this fact in mind as well, that there are certain living things and body parts which cannot be pluralized in this way.
When the noun ends with a vowel, a kind of liaison occurs. A letter "ی" comes between the noun and the "ان" suffix, which is pronounced like the "y" in English "yes".
If the noun ends with the vowel "ه", then the linking consonant will be "گ" and the letter "ه" will be omitted (short vowels need not be written when they are not the last sound of a word). Notice that liaison does not occur if the ending letter of the noun is originally a consonant "ه". Compare the first row against the second row:
3- The third method is to use one of the Arabic suffixes "ات", "ین" and "ون". These suffixes are less frequent, especially in spoken language. They should not be used for pluralizing pure Persian words and even among the Arabic loan words, relatively few of them can be pluralized this way.
4- The last and hardest method is using the Arabic “mukassar” plural form. This method is a rather complicated but common way to convert Arabic nouns into plural form. The mukassar plural form of each word is a different new word. This new word usually shares at least three letters with the original word. One can gradually get familiar with the patterns and even guess the plural form of words.