DuckCorp

DuckCorp Dico

(RFC 2229 compliant dictionary server)
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Found one definition 

  1.                 From English-Croatian FreeDict Dictionary ver. 0.2.2:
                

    
                
                  
    sleek /slˈiːk/
gladak, koji se lašti, njegovan, slatkorječiv, uglađen, zagladiti, zaravnati