[1] : The Collaborative International Dictionary of English v.0.48

block \block\ blo^k, v. t. imp.  p. p. blocked
   blo^kt; p. pr.  vb. n. blocking. cf. f. bloquer, fr.
   bloc block. see block, n.
   1. to obstruct so as to prevent passage or progress; to
      prevent passage from, through, or into, by obstructing the
      way; -- used both of persons and things; -- often followed
      by up; as, to block up a road or harbor; to block an
      entrance.
      1913 webster

            with moles . . . would block the port. --rowe.
      1913 webster

            a city . . . besieged and blocked about. --milton.
      1913 webster

   2. to secure or support by means of blocks; to secure, as two
      boards at their angles of intersection, by pieces of wood
      glued to each.
      1913 webster

   3. to shape on, or stamp with, a block; as, to block a hat.
      1913 webster

   4. to cause any activity to halt by creating an
      obstruction; as, to block a nerve impulse; to block a
      biochemical reaction with a drug.
      pjc

   to block out, to begin to reduce to shape; to mark out
      roughly; to lay out; to outline; as, to block out a plan.
      1913 webster
see also:
blocked blocking block to block out 

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Bawl Out, definition of term: Bawl Out
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Bear Out, definition of term: Bear Out
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Bail Out, definition of term: Bail Out
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Back Out, definition of term: Back Out
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Air Out, definition of term: Air Out
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Act Out, definition of term: Act Out
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