what does hm mean
Meronyms (parts of hm): dam; decameter; decametre; dekameter; dekametre; dkm (a metric unit of length equal to ten meters). Holonyms (hm is a part of...): kilometer; kilometre; klick; km (a metric unit of length equal to 1000 meters (or 0.621371 miles)).eronyms (parts of hm): dam; decameter; decametre; dekameter; dekametre; dkm (a metric unit of length equal to ten meters). Holonyms (hm is a part of...): kilometer; kilometre; klick; km (a metric unit of length equal to 1000 meters (or 0.621371 miles)).