HAC - Honourable Artillery Company.
HAG - Heavy Artillery Group.
Hard Tack - Army biscuit.
Harry Tate - RE8 type aircraft. (HarryTate was a well known music-hall performer).
Hate - Regular artillery bombardment. Morning Hate, etc.
H.E. - High explosive. British used TNT and, later TNT + Ammatol; Central Powers TNT only.
Hospital Blue - Blue coloured uniform, (with white shirt and red tie), worn by convalescent soldiers.
House - Game of Bingo. Also winning call for a card with a full set of correct numbers. Only legal form of gambling in Forces. The game was also known as Housey-Housey.
Housewife - Small cloth bag containing sewing and darning materials; part of serviceman's standard issue equipment.
Hun - German servicemen and civilians.
Huntley Palmer - Lewis twin guns mounted on British aircraft.
Hush-hush - Anything secret.
Hypo - Sodium thiosulphate. Used to impregnate gas-hoods as an early anti-toxic gas preventive measure.
