Just a bit of legalistic quibbling: 
 Why saber? 
Usually, saber is defined as a ( mostly) single-edged, curved blade ( shamshir, Kilij). 
Palash ( or any other spelling) has a straight  blade  that is  single edged. Sword is a straight blade that is double-edged. 
 At least, that is how they are defined by the Russian weapon specialists ( Miller, Astvatsaturyan, Trubnikov, etc). 
Thus, Tibetan swords are , strictly speaking,  palashes. No? 
 
 Many weapons ( Kora, sossun patah etc,  mostly Indian)  cannot be classied according to that principle.  Also, what to do with  straight, but partially double-edged  blades ( Khanda, for example) or even fully double-edged ( firangi)?
		 
		
		
		
		
		
		
		
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