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Borrowed from Old French singularité, from Late Latin singularitas (singleness), from Latin singularis (single). See singular.


  • IPA(key): /ˌsɪŋɡjəˈlæɹətɪ/
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singularity (countable and uncountable, plural singularities)

  1. the state of being singular, distinct, peculiar, uncommon or unusual
    • Addison
      I took notice of this little figure for the singularity of the instrument.
    • Sir Walter Raleigh
      Pliny addeth this singularity to that soil, that the second year the very falling down of the seeds yieldeth corn.
  2. a point where all parallel lines meet
  3. a point where a measured variable reaches unmeasurable or infinite value
  4. (mathematics) the value or range of values of a function for which a derivative does not exist
  5. (physics) a point or region in spacetime in which gravitational forces cause matter to have an infinite density; associated with black holes
  6. A proposed point in the technological future at which artificial intelligences become capable of augmenting and improving themselves, leading to an explosive growth in intelligence.
  7. (obsolete) Anything singular, rare, or curious.
    • Shakespeare
      Your gallery Have we passed through, not without much content / In many singularities.
  8. (obsolete) Possession of a particular or exclusive privilege, prerogative, or distinction.
    • Hooker
      No bishop of Rome ever took upon him this name of singularity [universal bishop].
    • Bishop Pearson
      Catholicism [] must be understood in opposition to the legal singularity of the Jewish nation.
  9. (obsolete) celibacy
    (Can we find and add a quotation of Jeremy Taylor to this entry?)


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The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.

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