noun
Refers to the act of sewing or the resulting stitches; can also mean embroidery when decorative stitching is implied.
母は縫いが上手だ。
My mother is good at sewing.
このブラウスは縫いが細かい。
This blouse has fine stitching.
刺繍 specifically means embroidery as a decorative craft, while 縫い is a broader term for sewing or stitching.
裁縫 refers to dressmaking or tailoring, encompassing cutting and sewing, whereas 縫い focuses on the stitching itself.
The noun form of the verb 縫う (ぬう, 'to sew'), derived from the continuative stem.