I. ˈ ̷ ̷| ̷ ̷ adverb
Etymology: from( at ) first hand
: directly from the original source : by direct observation or experience
they will learn them firsthand — and they will not like them — H.S.Truman
individual citizens should know firsthand what goes on in the courts — Dorothy Barclay
II. adjective
: obtained or coming directly from the original source : obtained by or based on direct observation or experience : direct , immediate
authentic firsthand facts about business properties and market conditions — advt
keep in firsthand touch with the changing … situation — Current Biography
firsthand information
a firsthand account, written by the doctor of a small merchant ship — H.R.Viets