wrecker Meaning, Definition & Usage
- 
       noun someone who demolishes or dismantles buildings as a job
        
      
 
- 
       noun someone who commits sabotage or deliberately causes wrecks
       
       
 diversionist; saboteur.
 
- 
       noun a truck equipped to hoist and pull wrecked cars (or to remove cars from no-parking zones)
       
       
 tow car; tow truck.
 
WordNet
Wreck"er noun
Definitions
-  One who causes a wreck, as by false lights, and the like. 
-  One who searches fro, or works upon, the wrecks of vessels, etc. Specifically: (a) One who visits a wreck for the purpose of plunder.(b) One who is employed in saving property or lives from a wrecked vessel, or in saving the vessel;as, the .wreckers of Key West
-  A vessel employed by wreckers.