A collection or group of letters with some meaning, called as ‘word’. The definition of a word is a letter or groups of letters that has meaning when spoken or written.


  • A dog
  • A boy
  • A girl
  • A cat
  • A ball
  • An apple
  • A car

A word is a speech sound or a combination of sounds, or its representation in writing, that symbolizes and communicates a meaning.

English has four major word classes: nouns, verbs, adjectives and adverbs. They have many thousands of members, and new nouns, verbs, adjectives and adverbs are often created. Nouns are the most common type of word, followed by verbs. Adjectives are less common and adverbs are even less common.


All types of words is known as ‘word classes’ or ‘part of speech’.

There are two types of classes

  • Open classes
  • Closed classes

Open classes

These are classes of word which are always open to change: new words are formed, while old ones drop out of use. The open classes are: noun, verbs, adjectives, and adverbs.

It is also known as ‘content’ or ‘lexical’ words.

Example:- 1. Bad – badly. 2. Happy – happily

Closed classes

On the other hand, pronouns, determines, prepositions, conjunctions are closed classes because there are no such additions to or deletions from them.

These words contain ‘structural’ words that contribute to the grammatical structure of the sentences.

Example:- 1. He – H(no meaning) 2. She – Sh(no meaning)

English Grammar Topics

NounParts of Speech

All Types of Tenses

Present SimplePresent Continuous
Present PerfectPresent Perfect Continuous
Past SimplePast Continuous
Past PerfectPast Perfect Continuous
Future SimpleFuture Continuous
Future PerfectFuture Perfect Continuous