TOEFL IELTS extend Definition To stretch out or increase in length, duration, or scope. Example "They decided to extend the deadline by one week." Sign in to save TOEFL Quiz → IELTS Quiz → ← extant extended → Study tips featuring "extend" 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