1.Noun refers to name of a person,things,place,etc...
Book is on the table.
Noun-Book.
2.Pronoun replaces noun to avoid repetition.
Priya participate in the dance competition.she won first prize.
Pronoun-She.
3.Adjective describes noun or pronoun.
He gave me a new pen.
Adjective-New
4.Verb is an action word.
He cooks very well.
Verb-Cook.
5.Adverb describes verb.
She waits patiently for his turn.
Adverb-Patiently.
6.Preposition shows the relationship of time,location,place,etc..
The ball is under the table.
Preposition-Under
7.Conjunction connects words or phrases.
She is funny and kind hearted.
Conjunction-And.
8.Interjection expresses a feelings.
wow!! you did a great job.
Interjection-Wow.