| A | B |
| armistice | the end of fighting under agreed terms |
| artillery | big guns and howitzers |
| barrage | concentration of heavy artillery fire in front of advancing or reteating troops |
| no-man's land | land between the opposing front line trenches |
| attrition | tactic of wearing down the opposition through heavy casualities - repeated attack and counter attack |
| dogfight | fight between two small groups of aircraft |
| dugout | shelter from shell fire; made by digging into the side of the trench wall or down from the floor |
| emplacement | site for one or more guns |
| fatigue | light duties including kitchen work |
| firestep | raised step on the side of a trench facing the enemy - used to watch or to fire at the enemy |
| flare | small signal light |
| mustard gas | yellow gas that blistered eyes and skin and caused the body's systems to collapse |
| offensive | large scale attack |
| parapet | side of the fire trench - topped with sandbags |
| pillbox | fortified concrete structure to house machine guns - built by the Germans |
| schrapnel | shell fragments |
| snipers | sharp shooters placed in concealed positions to fire on the enemy |
| tactics | controlled battlefield manoeuvres aimed to achieved a set objective |
| tanks | armoured fighting vehicles |
| trench foot | frostbite of the foot in the trenches |