B2noun2K

Coincidence

UK /["/kəʊˈɪnsɪdəns/"]/US /["/kəʊˈɪnsɪdəns/"]/

Definition

the fact of two things happening at the same time by chance, in a surprising way

In simple words: When two things happen at the same time by chance.

Examples

  • It was just a coincidence that we ran into each other at the café.
  • The coincidence of their birthdays is quite surprising.
  • Some people believe that every coincidence has a deeper meaning.
  • Their meeting was a coincidence, but it changed the course of their lives.
  • The similarity in their stories is more than a coincidence; they grew up in the same town.

Usage notes

Use 'coincidence' when referring to events that happen together unexpectedly. Avoid using it in formal scientific contexts, where 'correlation' might be more appropriate.

Grammar pattern

standalone noun

Memory hint

Think of 'coin' — two sides that may land together 'by chance'.

Collocations

  • complete
  • pure
  • sheer
  • series
  • set
  • string
  • happen
  • by (a) coincidence

Synonyms

  • chance
  • coincidental event
  • happenstance
  • fluke
  • accident

Antonyms

  • intention
  • design

Common mistakes

  • Confusing 'coincidence' with 'coincidental' — the latter is an adjective.
  • Using 'coincidence' when describing causal relationships instead of chance.
  • Overusing in formal writing; it's better in casual conversation.