A close view of a U-boat.
a German submarine
Origin of U-boat; from German U-boot, abbreviation, abbreviated of Unterseeboot, undersea boat
A submarine of the German navy.
Origin of U-boatTranslation of German U-Boot, short for Unterseeboot : unter, under (from Middle High German under, from Old High German untar; see &nlowring;dher- in Indo-European roots) + See, sea (from Middle High German sē, from Old High German) + Boot, boat.