Introduction:
Building vocabulary is an essential aspect of language learning. It helps students in developing communication skills and understanding written texts. In the case of CBSE Class 2 Hindi, there are several vocabulary-building exercises and word games that can be used to enhance the learning experience.

1. Flashcards:
Flashcards are a popular and effective tool for building vocabulary. Students can create flashcards with Hindi words on one side and their meanings or corresponding pictures on the other side. They can review these flashcards regularly to reinforce their understanding of various words.

2. Word Puzzles:
Word puzzles such as crossword puzzles and word searches can be a fun way to learn and reinforce vocabulary. Teachers can create age-appropriate puzzles with Hindi words and clues related to their meanings. Students can solve these puzzles individually or in groups, promoting engagement and collaboration.

3. Vocabulary Games:
There are several interactive online games available that focus on building vocabulary. These games involve matching words with pictures, completing sentences with appropriate words, and identifying synonyms and antonyms. Teachers can incorporate such games into their classroom activities to make learning more enjoyable and engaging.

4. Word Associations:
Word associations can help students make connections between words and their meanings. Teachers can provide a list of Hindi words and ask students to come up with related words or concepts. This exercise can enhance students' understanding of word meanings and expand their vocabulary.

5. Vocabulary Quizzes:
Periodic vocabulary quizzes can be conducted to assess students' progress and reinforce their learning. Teachers can provide a list of Hindi words and ask students to match them with their meanings or use them in sentences. This will not only test their vocabulary but also encourage them to apply their knowledge in context.

Conclusion:
Using a combination of flashcards, word puzzles, vocabulary games, word associations, and quizzes, teachers can effectively build the vocabulary of CBSE Class 2 Hindi students. These exercises and games not only make learning enjoyable but also help students in understanding and using Hindi words appropriately.