Yes, sound is playable
					...and is worth 8 points.
			
	
		
		
		
	
	Found in the following dictionaries
	Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Sound" Definition
        noun
        	
		A distinctive noise:  a hollow sound.
		
	 
	
	    	
		A long, relatively wide body of water, larger than a strait or a channel, connecting larger bodies of water.
		
	 
	
	    	
		A long, wide ocean inlet.
		
	 
	
	    	
		An instrument used to examine or explore body cavities, as for foreign bodies or other abnormalities, or to dilate strictures in them.
		
	 
	
	    	
	
			    adjective
        	
		Based on valid reasoning:  a sound observation.  See Synonyms at valid.
		
	 
	
	    	
		Compatible with an accepted point of view; conservative.
		
	 
	
	    	
		Deep and unbroken; undisturbed:  a sound sleep.
		
	 
	
	    	
		Financially secure or safe:  a sound economy.
		
	 
	
	    	
		Free from defect, decay, or damage; in good condition.
		
	 
	
			    verb-transitive
        	
		Linguistics   To articulate; pronounce:  sound a vowel.
		
	 
	
	    	
		To cause to give forth or produce a sound:  sounded the gong.
		
	 
	
	    	
		To examine (a body organ or part) by causing to emit sound; auscultate.
		
	 
	
	    	
		To make known; celebrate: "Nations unborn your mighty names shall sound”  ( Alexander Pope).
		
	 
	
	    	
		To measure the depth of (water), especially by means of a weighted line; fathom.
		
	 
	
			    phrasal-verb
        	
		Sound off  To count cadence when marching in military formation.
		
	 
	
			    adverb
        	
		Thoroughly; deeply:  sound asleep.
		
	 
	
	    	
	
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