Other forms: u-boats
A u-boat is a German submarine of the two world wars. Hunted by a u-boat.
The name is short for Unterseeboot, meaning undersea boat. A u-boat came closer to cutting Britain off than anything else in either war.
1nounu-boatA German submarine of the two world wars.
“The convoy lost four ships to one u-boat in a night.”
u-boat is a submarine.
German
U-Boot
English
U-boat
English, today
u-boat
U-boat German U-Boot; retail sense separately coined and reinforced by the well-known historical U-boat.
Etymology from Wiktionary, CC BY-SA