вахш

(n.) class. 1 dictum; 
2 word; 
3 spirit; 
soul; 
essence; 
4 running water; 
5 Vakhsh (goddess of the irrigation and fertilities of inhabitants of Old Baktria), name of river in Tajikistan

ваҳш

(adj.) class. wild (animal); 
~у тайр wild beast and birds; 
хари ~ wild ass, onager