English terms related to World War I.

NOTE: This is a "related-to" category. It should contain terms directly related to World War I. Please do not include terms that merely have a tangential connection to World War I. Be aware that terms for types or instances of this topic often go in a separate category.

The following label generates this category: World War I (aliases WW 1, WW I, WW1, WWI, World War 1)edit. To generate this category using one of these labels, use {{lb|en|label}}.