bow, arc

CURVE
WordClue
ARCswoop, curve
BOWcurve, arc
BENDbow, curve
ARROWsubmarine - torpedo, bow - ?
HELIXsmooth space curve
BULLETbow - arrow, pistol - ?
CIRCLEsimple curve of Euclidean geometry
PISTOLarrow - bow, bullet - ?
RIBBONbow
WEAPONbow or pistol
TORPEDObow - arrow, submarine - ?
SUBMARINEarrow - bow, torpedo - ?
RIBBONbow
BULLETbow - arrow, pistol - ?