GRE TOEFL IELTS exertion Definition The use of physical or mental effort; great effort. Example "Running the marathon required tremendous exertion." Sign in to save GRE PDF — $25 TOEFL PDF — $25 IELTS PDF — $25 ← exert exhale → Study tips featuring "exertion" TOEFL Academic Vocabulary: Study by Topic Boost Your IELTS Writing With Precise Vocabulary Related words GRE awe GRE smithereens GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct GRE aberrant