The Collaborative International Dictionary of English v.0.48:

Dike \Dike\, v. i.
   To work as a ditcher; to dig. [Obs.]
   [1913 Webster]

         He would thresh and thereto dike and delve. --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dike \Dike\ (d[imac]), n. [OE. dic, dike, diche, ditch, AS.
   d[imac]c dike, ditch; akin to D. dijk dike, G. deich, and
   prob. teich pond, Icel. d[imac]ki dike, ditch, Dan. dige;
   perh. akin to Gr. tei^chos (for qei^chos) wall, and even E.
   dough; or perh. to Gr. ti^fos pool, marsh. Cf. Ditch.]
   1. A ditch; a channel for water made by digging.
      [1913 Webster]

            Little channels or dikes cut to every bed. --Ray.
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   2. An embankment to prevent inundations; a levee.
      [1913 Webster]

            Dikes that the hands of the farmers had raised . . .
            Shut out the turbulent tides.         --Longfellow.
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   3. A wall of turf or stone. [Scot.]
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   4. (Geol.) A wall-like mass of mineral matter, usually an
      intrusion of igneous rocks, filling up rents or fissures
      in the original strata.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dike \Dike\, v. t. [imp. & p. p. Diked; p. pr. & vb. n.
   Diking.] [OE. diken, dichen, AS. d[imac]cian to dike. See
   Dike.]
   1. To surround or protect with a dike or dry bank; to secure
      with a bank.
      [1913 Webster]

   2. To drain by a dike or ditch.
      [1913 Webster]

WordNet (r) 3.0 (2006):

dike
    n 1: (slang) offensive term for a lesbian who is noticeably
         masculine [syn: butch, dike, dyke]
    2: a barrier constructed to contain the flow of water or to keep
       out the sea [syn: dam, dike, dyke]
    v 1: enclose with a dike; "dike the land to protect it from
         water" [syn: dike, dyke]

The Free On-line Dictionary of Computing (19 January 2023):

dike

   To remove or disable a portion of something, as a wire from a
   computer or a subroutine from a program.  A standard slogan is
   "When in doubt, dike it out".  (The implication is that it is
   usually more effective to attack software problems by reducing
   complexity than by increasing it.)  The word "dikes" is widely
   used among mechanics and engineers to mean "diagonal cutters",
   especially the heavy-duty metal-cutting version, but may also
   refer to a kind of wire-cutters used by electronics
   technicians.  To "dike something out" means to use such
   cutters to remove something.  Indeed, the TMRC Dictionary
   defined dike as "to attack with dikes".  Among hackers this
   term has been metaphorically extended to informational objects
   such as sections of code.

   [Jargon File]


The Jargon File (version 4.4.7, 29 Dec 2003):

dike
 vt.

    To remove or disable a portion of something, as a wire from a computer or a
    subroutine from a program. A standard slogan is “When in doubt, dike it out
    ”. (The implication is that it is usually more effective to attack software
    problems by reducing complexity than by increasing it.) The word ‘dikes’ is
    widely used to mean ‘diagonal cutters’, a kind of wire cutter. To ‘dike
    something out’ means to use such cutters to remove something. Indeed, the
    TMRC Dictionary defined dike as “to attack with dikes”. Among hackers this
    term has been metaphorically extended to informational objects such as
    sections of code.