noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ɛkˈsiːdn̩s/
/ɪkˈsiːdn̩s/
1
noun
Meaning 1
The extent to which an action, activity or substance exceeds a limit set by recommended practice, legislation, etc.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Examples
1997 December, US General Accounting Office, Aviation Safety: Efforts to Implement Flight Operational Quality Assurance Programs, GAO/RCED-98-10, Report to Congressional Requesters, page 24, On a periodic basis, airlines aggregate and analyze exceedances over time—for example, the number of unstabilized approaches at a particular airport per month, over the last 12 months.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
(geology) the probability that an earthquake will generate a level of ground motion that exceeds a specified reference level during a given exposure time
Definition source: Princeton WordNet 3.0
Examples
the concept of exceedance can be applied to any type of environmental risk modeling
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: probability, chance
History
Etymology
Etymology tree English exceed Latin -iader. Old French -ancebor. Middle English -aunce English -ance English exceedance From exceed + -ance.
Across languages
Translations
1 source translations are retained for this English entry.
