TOEFL IELTS impact Definition A strong effect or influence; a collision. Example "The new policy had a significant impact on small businesses." Sign in to save TOEFL PDF — $25 IELTS PDF — $25 ← imp impair → Study tips featuring "impact" TOEFL Academic Vocabulary: Study by Topic Boost Your IELTS Writing With Precise Vocabulary Related words TOEFL brighten GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze