A Noun is a name: as, pencil, London, Aminah, Lim Cheng Swee, Raju, beauty.
A Pronoun is a word used for instead of a Noun; it shows the person or thing without actually giving the name of the person or things; as, he, she, it, this.
An Adjective is a word which adds to the meaning of a Noun, that is, it tells something more about the Noun; as, black cat, good boy, beautiful house.
A Verb is a word which tells us something about a person or thing. It is a "telling-word" or a "saying word". It tells us what a person or thing does. It also tells us what a person or thing is or suffers (i.e. has done to it) ; as, Milon writes. Dogs bark. Rahim is good. The cat is loved by the girl. The Verb is the most important word in a Sentence.
An Adverb is a word which adds something to the meaning of a Verb, an Adjective or another Adverb; as,
He speaks loudly (speaks=Verb. Speaks how?)
She is very good (good=Adjective. How good?)
He talks too loudly (loudly=Adverb. How loudly?)
A Preposition is a word which joins Nouns and Pronouns to other words; as, The book is on the table. He is in the room. The cat is under the table.
A Conjunction is a word used to join words or groups of words together; as, Two and two make four. He is bad but you are good.
An Interjection is only a cry. It is a sound or a noise a person makes when he is excited, to express some strong feeling. It is not an important Part of Speech: Oh! Hallo! Hurrah!