curve, arc

BOW
WordClue
ARCswoop, curve
BENDcurve
ARROWsubmarine - torpedo, bow - ?
CURVEbow, arc
HELIXsmooth space curve
BULLETbow - arrow, pistol - ?
CIRCLEsimple curve of Euclidean geometry
PISTOLarrow - bow, bullet - ?
RIBBONbow
WEAPONbow or pistol
TORPEDObow - arrow, submarine - ?
SUBMARINEarrow - bow, torpedo - ?
BENDcurve
WOOLSACKcushion, bolster