螺旋 ねじ screw N2 #9,670 Meanings noun, usually in kana screw usually in kana key (of a clock, watch, etc.); spring らせん noun spiral; helix screw Its kanji 螺 ラ · にし、にな small, edible, helical fresh-water mollusk 旋 セン · め.ぐる、いばり rotation, go around