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 PDF — $25 IELTS PDF — $25 ← extant extended → Study tips featuring "extend" 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