accidence / accidents are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
accidence: NA
accidents: (noun) an unfortunate mishap; especially one causing damage or injury. (noun) anything that happens suddenly or by chance without an apparent cause.
accidence: NA
accidents: AE·k·s·ah·d·ah·n·t·s
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)