SAT TOEFL incidence Definition The frequency or rate at which something occurs. Example "The incidence of flu cases has risen sharply this winter." Sign in to save SAT Quiz → TOEFL Quiz → ← inchoate incident → Study tips featuring "incidence" Map Each Word Into a Connected Network Map the Author's Attitude Before Reading Questions Track How TOEFL Words Behave With Others Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal