variants  
 or less commonly grey
        
    1
                    
        a
    
          
                                          
              
          
                                                      : of the color gray                                      
                
                    
        b
    
          
                                          
              
          
                                                      : tending toward gray                                      
              
                             
blue-gray eyes
                         
                
                    
        c
    
          
                                          
              
          
                                                      : dull in color                                      
                
                    
2
                    
                                          
              
          
                                                      : having the hair gray : hoary                                      
                
                    
3
                    
                                          
              
          
                                                      : clothed in gray                                      
                
                    
4
                    
        b
    
          
                                          
              
          
                                                      : prosaically ordinary : dull, uninteresting                                      
              
                             
the boring, gray dullness of government— P. J. O'Rourke
P. J. O'Rourke
                         
                
                    5
                    
                                          
              
          
                                                      : having an intermediate and often vaguely defined position, condition, or character                                      
              
                             
an ethically gray area
                         
                
                    
                                                      grayly
                                      adverb
                                                                            
    
                                                      grayness
                                      noun
                                                                            
    
            variants  
 or less commonly grey
        
    1
                    
                                          
              
          
                                                      : any of a series of neutral colors ranging between black and white                                      
                
                    
2
                    
                                          
              
          
                                                      : something (such as an animal, garment, cloth, or spot) of a gray color                                      
                
                    
3
                    
        a
    
          
                                          
              
          
                                                      : a soldier in the Confederate army during the American Civil War                                      
                
                    
        b
    
          
                                often capitalized                                  
              
          
                                                      : the Confederate army                                      
                
                    
            variants  
 or less commonly grey
        
    
            
              grayed also greyed; graying also greying; grays also greys            
        
    1
                    
                                          
              
          
                                                      : to become gray                                      
                
                    
2
                    
                                          
              
          
                                                      : age                                      
                
                                
            also                
          
                                                      : to contain an increasing percentage of older people                                       
              
                             
            The town's population has grayed over the last two decades.    
                         
            
                                
              
          
                                                      : to make gray                                      
                
                    
                                
              
          
                                                      : the mks unit of absorbed dose of ionizing radiation equal to an energy of one joule per kilogram of irradiated material                                      
                
                  —abbreviation Gy
    
                
                    
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  Merriam-Webster unabridged




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