People who develop a rich vocabulary tend to be deeper thinkers, express themselves better, and read more. Vocabulary is the foundation for comprehension. Having a rich vocabulary will help you communicate in a more engaging way. A better vocabulary helps in solving certain question types like finding the synonyms/ antonyms; find a word’s meaning; answer passage-based questions; find the odd word based on meaning; etc. The English sections of competitive exams ask such questions frequently, and a good vocabulary helps immensely.