缝补（fèng bǔ）- to mend or darn

缝纫（fèng rèn）- sewing

缝隙（fèng xì）- crack or crevice

缝制（fèng zhì）- sewing or stitching

缝合（fèng hé）- to sew together or stitch up

缝缀（fèng zhuì）- to patch or piece together

缝红旗（fèng hóng qí）- to sew a red flag (referring to the Communist Party of China's emblem)

缝红包（fèng hóng bāo）- to sew a red envelope (used for giving money during Chinese New Year)

缝衣服（fèng yī fú）- to sew clothes

缝嘴巴（fèng zuǐ bā）- to stitch up someone's mouth (figuratively, to keep them quiet)。