An extensive vocabulary is essential for expressions and communication. Vocabulary size has been directly linked to reading comprehension and success.
Learning vocabulary is one of the most important steps of learning a second language. Acquiring an extensive vocabulary is one of the biggest challenges in learning a second language. Whether in one's native language or a second language, the acquisition of new vocabulary is a continual process.
Reading is a very effective way to increase your vocabulary - especially if you can read about things that are interesting to you. When you see a word that you don't know, you should look up its definition in a dictionary. Some words can have more than one definition, so it is important that you check the other definitions to make sure you have selected the best one. Afterwards, you should study your new words and test yourself.
This will ensure that you learn the new words.