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PIE root

From Late Latin parenthesis ‎(addition of a letter to a syllable in a word), from Ancient Greek παρένθεσις ‎(parénthesis), from παρεντίθημι ‎(parentíthēmi, I put in beside, mix up), from παρά ‎(pará, beside) + ἐν ‎(en, in) + τίθημι ‎(títhēmi, put, place) (from Proto-Indo-European base *dhe- ‎(to put, to do)).


  • IPA(key): /pəˈrɛnθəsɪs/
  • (file)


parenthesis ‎(plural parentheses)

  1. A clause, phrase or word which is inserted (usually for explanation or amplification) into a passage which is already grammatically complete, and usually marked off with brackets, commas or dashes.
  2. Either of a pair of brackets, especially round brackets, ( and ) (used to enclose parenthetical material in a text).
  3. (rhetoric) A digression; the use of such digressions.
    • 2009, Up in the air:
      Ryan Bingham: I thought I was a part of your life. Alex Goran: I thought we signed up for the same thing... I thought our relationship was perfectly clear. You are an escape. You're a break from our normal lives. You're a parenthesis. Ryan Bingham: I'm a parenthesis?
  4. (mathematics, logic) Such brackets as used to clarify expressions by grouping those terms affected by a common operator, or to enclose the components of a vector or the elements of a matrix.


Derived terms[edit]


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