The Collaborative International Dictionary of English v.0.48:

Spark \Spark\, n. [OE. sparke, AS. spearca; akin to D. spark,
   sperk; cf. Icel. spraka to crackle, Lith. sprag["e]ti, Gr. ?
   a bursting with a noise, Skr. sph?rj to crackle, to thunder.
   Cf. Speak.]
   1. A small particle of fire or ignited substance which is
      emitted by a body in combustion.
      [1913 Webster]

            Man is born unto trouble, as the sparks fly upward.
                                                  --Job v. 7.
      [1913 Webster]

   2. A small, shining body, or transient light; a sparkle.
      [1913 Webster]

   3. That which, like a spark, may be kindled into a flame, or
      into action; a feeble germ; an elementary principle. "If
      any spark of life be yet remaining." --Shak. "Small
      intellectual spark." --Macaulay. "Vital spark of heavenly
      flame." --Pope.
      [1913 Webster]

            We have here and there a little clear light, some
            sparks of bright knowledge.           --Locke.
      [1913 Webster]

            Bright gem instinct with music, vocal spark.
                                                  --Wordsworth.
      [1913 Webster]

   Spark arrester, a contrivance to prevent the escape of
      sparks while it allows the passage of gas, -- chiefly used
      in the smokestack of a wood-burning locomotive. Called
      also spark consumer. [U.S.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Spark \Spark\, n. [Icel. sparkr lively, sprightly.]
   1. A brisk, showy, gay man.
      [1913 Webster]

            The finest sparks and cleanest beaux. --Prior.
      [1913 Webster]

   2. A lover; a gallant; a beau.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Spark \Spark\, v. i.
   1. To sparkle. [Obs.] --Spenser.
      [1913 Webster]

   2. (Elec.) To produce, or give off, sparks, as a dynamo at
      the commutator when revolving under the collecting
      brushes.
      [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Spark \Spark\, v. i.
   To play the spark, beau, or lover.
   [1913 Webster]

         A sure sign that his master was courting, or, as it is
         termed, sparking, within.                --W. Irwing.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

electric current \electric current\, electrical current
\electrical current\,
   the movement of electrically charged particles, atoms, or
   ions, through solids, liquids, gases, or free space; the term
   is usually used of relatively smooth movements of electric
   charge through conductors, whether constant or variable.
   Sudden movements of charge are usually referred to by other
   terms, such as spark or lightning or discharge. In
   metallic conductors the electric current is usually due to
   movement of electrons through the metal. The current is
   measured as the rate of movement of charge per unit time, and
   is counted in units of amperes. As a formal definition, the
   direction of movement of electric current is considered as
   the same as the direction of movement of positive charge, or
   in a direction opposite to the movement of negative charge.
   Electric current may move constantly in a single direction,
   called direct current (abbreviated DC), or may move
   alternately in one direction and then the opposite direction,
   called alternating current (abbreviated AC).
   [PJC]

WordNet (r) 3.0 (2006):

spark
    n 1: a momentary flash of light [syn: flicker, spark,
         glint]
    2: merriment expressed by a brightness or gleam or animation of
       countenance; "he had a sparkle in his eye"; "there's a
       perpetual twinkle in his eyes" [syn: sparkle, twinkle,
       spark, light]
    3: electrical conduction through a gas in an applied electric
       field [syn: discharge, spark, arc, electric arc,
       electric discharge]
    4: a small but noticeable trace of some quality that might
       become stronger; "a spark of interest"; "a spark of decency"
    5: Scottish writer of satirical novels (born in 1918) [syn:
       Spark, Muriel Spark, Dame Muriel Spark, Muriel Sarah
       Spark]
    6: a small fragment of a burning substance thrown out by burning
       material or by friction
    v 1: put in motion or move to act; "trigger a reaction";
         "actuate the circuits" [syn: trip, actuate, trigger,
         activate, set off, spark off, spark, trigger off,
         touch off]
    2: emit or produce sparks; "A high tension wire, brought down by
       a storm, can continue to spark" [syn: spark, sparkle]

Moby Thesaurus II by Grady Ward, 1.0:

217 Moby Thesaurus words for "spark":
   AC arc, Beau Brummel, Poulsen arc, abettor, activate, actuate,
   actuator, address, animate, animator, aperiodic discharge, arc,
   arc column, arc discharge, atom, bake, be in heat, beau, begin,
   blade, blaze, blink, blinking, blood, bloom, boil, boulevardier,
   bring about, broil, brush discharge, bud, burn, cajoler, cast,
   chase, choke, clotheshorse, coax, coaxer, combust, compel, cook,
   coruscate, coruscation, court, coxcomb, dandy, dash, discharge,
   disruptive discharge, dude, electric discharge, electric shock,
   electric spark, electrify, electrodeless discharge, embryo,
   encourager, energize, energizer, enkindle, esquire, excite,
   exquisite, fashion plate, fine gentleman, fire, firefly, firer,
   flame, flame up, flare, flare up, flicker, flush, follow, fop,
   force, foster, fribble, fry, gadfly, gallant, galvanic shock,
   galvanize, galvanizer, gasp, germ, gleam, glimmer, glimmering,
   glint, glisk, glisten, glister, glitter, glittering, glow,
   glow discharge, glowworm, hint, idea, ignite, impel, impeller,
   incandesce, inducer, initiate, inspire, inspirer, inspirit,
   intimation, iota, jack-a-dandy, jackanapes, kindle, lady-killer,
   lay siege to, lick, light the fuse, look, macaroni, make suit to,
   make up to, man-about-town, masher, motivate, move, move to action,
   mover, moving spirit, nucleus, oscillatory discharge, pant, parch,
   pay attention to, pay court to, persuader, pleader, precipitate,
   prime mover, promote, prompter, propel, provoke, puppy, pursue,
   radiate heat, roast, scald, scintilla, scintillate, scintillation,
   scorch, seethe, serenade, set in motion, set off, shade, shadow,
   shimmer, shimmer with heat, shimmering, shock, silent discharge,
   simmer, sip, smack, smattering, smell, smolder, smother, soupcon,
   spangle, spark gap, spark plug, sparker, sparkle, speck, sport,
   sprinkling, squire, start up, steam, stew, stifle, stimulate,
   stimulator, stroboscopic light, sue, suffocate, suggestion, sup,
   suspicion, swain, sweat, sweetheart, swell, swelter, taste,
   tempter, thought, tincture, tinge, tinsel, toast, touch, touch off,
   trace, trigger, twinkle, twinkling, vestige, wheedler, whit, woo,
   wooer



The Free On-line Dictionary of Computing (30 December 2018):

SPARK

    An annotated subset of Ada supported by tools
   supplied by Praxis Critical Systems (originally by PVL).

   (http://sparkada.com).

   (2001-07-12)