Part of Speech

Part of speech is traditional term for the categories into which words are classified according to their functions in sentences. There are eight categories of part of speech which are:
Verbs
Verbs are sometimes described as "action words". For example, words like run, fight, do and work. But some verbs do not give the idea of action; they give the idea of existence, of state, of "being". For example, verbs like be, exist, seem and belong
Nouns
In simple terms, nouns are "things" or persons.
Adjectives
An adjective is a word that tells us more about a noun. An adjective "qualifies" or "modifies" a noun. Adjectives can be used before a noun or after certain verbs.
Adverbs
An adverb "qualifies" or "modifies" a verb. But adverbs can also modify adjectives, or even other adverbs.
Pronouns
Pronouns are small words that take the place of a noun. We can use a pronoun instead of a noun. Pronouns are words like: he, you, ours, themselves, some, each.
Prepositions
A preposition is a word governing, and usually coming in front of, a noun or pronoun and expressing a relation to another word or element.
Conjunctions
A conjunction is a word that "joins" two parts of a sentence.
Interjections
An interjection is a word added to a sentence to convey emotion. It is not grammatically related to any other part of the sentence.