How to recognize nouns

To make grip over recognition of nouns we must know how do they act/funtion and where do they can be in the sentence.

Usually hey come with articles. If some word comes after "a," "an" or "the" fairly closely, it’s probably a noun. If  an adjective is also used there t, it’ll be between the article and the noun, that is why you’ll have to ask yourself, “Is this something I can feel, see, smell, taste or touch? then it is a noun, and if  it describe something I can feel, see, smell, taste or touch,” it is probably an adjective.
Nouns are described by adjectives. If something is described as being blue, old, shiny, hot or wonderful (all adjectives), it’s probably a noun.

Mostly  they act as subjects. We know that the subject of a sentence is the thing that comes right before the verb. When we say, “The Dog ate my bread,” the subject is “the Dog.” It comes right before the verb (ate). Subjects are a little tricky because they can consist of just one word or a whole, long phrase that can contain several nouns. Some times gerund and infinitive verbs can also act as subjects , but in that case, they are serving as nouns. Why? Because nouns act as subjects.
They act as objects and complements. Complements follow state-of-being verbs like “be,” “seem” and “become.” Objects follow other verbs as well as prepositions. In the sentence, “Ali is a student,” the complement is “a student.” In the sentence, “Baby hit a chair,” the object is “a student.” In the sentence, “I am sitting near a student,” the prepositional object is “a a student.” In all cases, “student” is a noun.
They are naming words means they are  names. All names of all things (people, cities, towns, counties, states, countries, buildings, monuments, rivers, mountains, lakes, oceans, streams, natural disasters, books, plays, magazines, articles, songs, works of art, etc.) are nouns.