incidence

How often something happens

Incidence refers to the rate or frequency at which something occurs, especially in statistical or epidemiological contexts: the incidence of heart disease, a high incidence of fraud.

In physics, the angle of incidence is the angle at which a ray strikes a surface.

The word overlaps with incident but emphasizes occurrence patterns rather than individual events.

occurrence

frequency

Rate of recurrence

case · event · phenomenon · happening · regularity · pattern · distribution · likelihood · probability · proportion

epidemiology

prevalence

State of being widespread

  • outbreakSudden eruption of trouble
  • rateMeasured speed or charge
  • casesContainers or instances

disease · infection · morbidity · mortality · transmission · epidemic · pandemic · endemic · surveillance · population

optics

angle

Geometric measure of rotation

beam · normal · perpendicular · surface · plane · projection · laser · prism · photon · light

statistics

rate

Measured speed or charge

probability · distribution · measurement · calculation · data · sample · population · numerator · denominator · significance

taxation

tax

Mandatory public revenue charge

  • levyCompulsory government charge
  • burdenOppressive weight or duty
  • liabilityLegal or financial obligation

distribution · allocation · shifting · economic · fiscal · progressive · regressive · assessment · imposition · falling

Categories
Opposites
frequency/prevalence

incidencerarity

Uncommon occurrence

infrequency · uncommonness · scarcity · low frequency · rareness

occurrence vs. non-occurrence

incidenceabsence

State of not being

nonoccurrence · non-existence · lack · nonexistence · immunity

Phrases
Family

incident, coincidence, incidents, incidental, incidentally, coincidental, coincident, coincidentally, incidences

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Abstract · Rated G