TOEFL IELTS portion Definition A part or share of a whole. Español Una parte o porción de un todo. Example "He ate only a small portion of the pie." Sign in to save TOEFL PDF — $25 IELTS PDF — $25 ← portfolio portrait → Study tips featuring "portion" 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