Scrabble & Words with friends points
        
        
                    - penumbras is a valid Scrabble US word with a point value of 15
 
          
                    - penumbras is a valid Scrabble UK word with a point value of 15
 
          
                    - penumbras is a valid Words with friends word with a point value of 20
 
          
        
        Definition of penumbras
        
        
          - a fringe region of partial shadow around an umbra (noun)
         
        See definition of penumbras in Merriam Webster