IELTS VOCABULARY BUILDER. Indispensable: Indispensable is a synonym word for something very important. Synonyms: Necessary, crucial Example: This book is an indispensable resource for researchers. For more such content visit: https://oxygenforenglish.com/ielts-vocabulary-builder-chapter-10-band-8-words-for-ielts-writing-task-2/ #vocabulary #ielts #ieltspreparation #vocabularybuilding #oxygenforenglish












