FA - a) Field Artillery. b) Field Ambulance unit. c) Nothing - Fanny Adams/Sweet Fanny Adams/ F..k All.
Fag - Cigarette. (from fag end [c.1888])
FANY - Nursing unit - First Aid Nursing Yeomanry.
Fascine - Large bundle of sticks carried by tanks to facilitate crossing of trenches etc.
FB - Fighter biplane.
FD - Field Dressing. Small package carried by all soldiers to administer first aid to himself or a comrade.
Feldgrau - Colour of German uniform and the uniform itself.
Field Dressing - Small bag of bandages and pins carried by each man for application to small wounds.
Field postcard - Card bearing a series of printed standardised messages which could be under-scored to indicate present status of serviceman. Avoided need for, and delay by, censoring.
Field Punishment Number 1- Punishment of soldiers that involved being tied to a gun-wheel and being put on a bread and water diet.
Fire-bay - Position in trench for infantryman awaiting an attack.
Fire-step - Raised step which allowed infantryman to see over the parapet for firing or observation. The depth of the trench proper allowed movement without exposing the head above ground.
Fire-trench - Principal front-line trench.
Flak - German anti-aircraft fire.
Flammenwerfer - German flame-thrower.
Flea-bag - Sleeping bag.
Flechette - Anti-personnel dart dropped from an aircraft.
Flight - Nominally, 5 or 6 RFC aircraft.
Flying pig - Any mortar bomb.
FOO - Forward Observation Officer. Link between Battalion and artillery batteries.
Four-by-two - Small (4" x 2") piece of flannelette cloth attached to pull- through cord and used to clean the bore of a rifle.
FP - Field Punishment. Severest punishment at field level.
Fray Bentos - Canned corned beef; derived from trade mark of large Argentinian supplier.
Frightfulness - Gas warfare and German Army's conduct in general.
Fritz - German. (Jerry was a WW2 term)
Front - Area(s) where the opposing armies met.
FSMO - Full Service Marching Order - standard equipment carried by infantryman in the field.
Funk hole - Dugout. Occasionally used to indicate a hiding place for officers and soldiers who had 'the wind-up' (afraid).
