SPARK (n)  A hot, bright particle of a material that burns  DO NOT USE TEST EQUIPMENT THAT CAN CAUSE SPARKS.  
 spark (v)  SPARK (n)  PUT ON GOGGLES WHEN YOU USE ELECTRICAL EQUIPMENT WHICH MAKES SPARKS.  Wear goggles when using electrical equipment that sparks.
 SPEAK (v),
 SPEAKS, SPOKE, SPOKEN  To use your voice to tell  SPEAK INTO THE MICROPHONE.  
 SPECIAL (adj)  For a specified function  TIGHTEN THE SPECIAL NUT.  
 SPECIALLY (adv)  In a special "manner"  THE EXTRACTOR IS MADE SPECIALLY TO REMOVE THE PINS.  
 specific (adj)  SPECIAL, SPECIFIED  USE THE SPECIAL TOOLS TO PREVENT POSSIBLE DAMAGE.  Use specific tools to preclude the possibility of damage.
       THESE AREAS HAVE SPECIFIED DAMAGE LIMITS.  These areas have specific damage limits.
specifically (adv)  SPECIALLY  THESE MATERIALS ARE SPECIALLY MADE FOR PLASTIC SURFACES.  These products are specifically designed for plastic surfaces.
 SPECIFIED (adj)  Given in, identified in, or related to, a specification (TN)  INFLATE THE TIRE WITH NITROGEN TO THE SPECIFIED PRESSURE.  
 speech (n)  VOICE  IF YOU CANNOT HEAR THE VOICE, REPLACE THE UNIT.  If the speech is not audible, replace the unit.
 SPEED (n)  The rate of movement  IF THE WIND SPEED IS MORE THAN XXXX, DO NOT OPEN THE RADOME.