This The Mentalist screencap contains
flotte ballistischen raketen-u-boot, flotte ballistische raketen u-boot, flotte ballistischer raketen-u-boot, angriff u-boot, u-boot, u-boot, pigboat, sub, u boot, schweinboot, and boot.
There might also be
minisub, minisubmarine, u-boot-torpedo, bathyscaphe, bathyscaph, and bathyscape.