If you are asking about pencils, it represents a degree of hardness of the 'lead' as in H for hard, then 2H 3H 4H and up to 9H
I believe it stands for Horace Lawson Hunley, who was the developer of the submarine.
It's the series letter. Unlike coins, bills dates are only changed under certain circumstances. Before the 1970s new dates were used only when the design changed. When a new Treasury Secretary or Treasurer was appointed, the Bureau of Engraving and Printing simply added a letter after the date. The relatively high letter H means that your bill was actually printed in the 1960s! Today, the date is usually changed when a new Treasury Secretary is appointed, in addition to design changes. A letter is added when a new Treasurer is appointed.
stand together on nation issues - apex
Joseph H. Rainey House was created in 1760.
Harri, Hat, Hattie,H-meister ,H, HazzaBean, Ha !! need i go on !!
High
They stand for:-HeadHeartHandsHealth
H2S >> H+ + HS- Ka = [H+][HS-]/[H2S] Ka = 10^-7.0
H.S. Waffentechnik = Herbert Schmidt Waffentechnik
I'm not sure about HS, I think maybe it could stand for High School. A J could stand for Javelin.
4 horseman of the Apocolyps.
hassium
Horse stuff
The Harmonized Commodity Description and Coding System (HS)
Horse Sh it
The clover stands for head, heart, hands, health.
hands, heart, head, health