TOEFL IELTS grin Definition A broad smile, often showing pleasure or amusement. Example "The child had a wide grin after winning the game." Sign in to save TOEFL Quiz → IELTS Quiz → ← grimace grind → Study tips featuring "grin" Audit Your Own Writing to Find Gaps TOEFL Academic Vocabulary: Study by Topic Boost Your IELTS Writing With Precise Vocabulary Related words TOEFL swiftness GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate GRE abduct SAT abet GRE abhor GRE abide SAT abject TOEFL ablaze