The Collaborative International Dictionary of English v.0.48:

Close \Close\ (kl[=o]z), v. t. [imp. & p. p. Closed
   (kl[=o]zd); p. pr. & vb. n. Closing.] [From OF. & F. clos,
   p. p. of clore to close, fr. L. claudere; akin to G.
   schliessen to shut, and to E. clot, cloister, clavicle,
   conclude, sluice. Cf. Clause, n.]
   1. To stop, or fill up, as an opening; to shut; as, to close
      the eyes; to close a door.
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   2. To bring together the parts of; to consolidate; as, to
      close the ranks of an army; -- often used with up.
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   3. To bring to an end or period; to conclude; to complete; to
      finish; to end; to consummate; as, to close a bargain; to
      close a course of instruction.
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            One frugal supper did our studies close. --Dryden.
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   4. To come or gather around; to inclose; to encompass; to
      confine.
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            The depth closed me round about.      --Jonah ii. 5.
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            But now thou dost thyself immure and close
            In some one corner of a feeble heart. --Herbert.
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   A closed sea, a sea within the jurisdiction of some
      particular nation, which controls its navigation.
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