Webster's English Dictionary

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closure

1. clo.sure \'klo--zh*r\ n [ME, fr. MF, fr. L clausura, fr. clausus, pp. of 
   claudere to] [trans. of F clo^ture]close - more at CLOSE archaic  1: means 
   of enclosing : ENCLOSURE  2: an act of closing : the condition of being 
   closed  3: something that closes  4: CLOTURE 
2. closure \'klo-zh-(*-)rin\ vt or clo.sur.ing : CLOTURE