Close v. t. [imp. & p. p. Closed p. pr. & vb. n. Closing.]
  1. To stop, or fill up, as an opening; to shut; as, to close the eyes; to close a door.
  2. To bring together the parts of; to consolidate; as, to close the ranks of an army; -- often used with up.
  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.
     One frugal supper did our studies close.   --Dryden.
  4. To come or gather around; to inclose; to encompass; to confine.
     The depth closed me round about.   --Jonah ii. 5.
  But now thou dost thyself immure and close
  In some one corner of a feeble heart.   --Herbert.
  A closed sea, a sea within the jurisdiction of some particular nation, which controls its navigation.