SAT TOEFL vaccinate Definition To administer a vaccine to protect against a disease. Example "All children should be vaccinated against measles." Sign in to save SAT PDF — $25 TOEFL PDF — $25 ← vacation vaccine → Study tips featuring "vaccinate" TOEFL Academic Vocabulary: Study by Topic How Context Clues Save You on the SAT Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal