One can increase the stock of words by using following advices-
1. By reading English newspapers daily for building vocabulary.
2. By checking word meanings from dictionary and using dictionary to learn the spellings and forms of speech.
3. By interacting with other English language speakers. By speaking, listening and sharing information in English language one can learn the language faster.
4. By practising the pronunciation of words and spellings by speaking, reading and writing in English language.
5. By taking help of your peers, teachers and parents to speak, read and write the language properly both at home and school, inside and outside.