TOEFL IELTS threaten Definition To indicate an intention to harm or cause someone distress. Example "The dark clouds threaten a storm before evening." Sign in to save TOEFL Quiz → IELTS Quiz → ← threadlike threateningly → Study tips featuring "threaten" Map Each Word Into a Connected Network Audit Your Own Writing for Lexical Resource Track How TOEFL Words Behave With Others 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