verb
/ˈsoʊ/ sews; sewed; sewn /ˈsoʊn/ or sewed; sewing
to make or repair something (such as a piece of clothing) by using a needle and thread [+ obj]
sew up
[phrasal verb]
sew (something) up or sew up (something)
to close or repair (something) by using a needle and thread
informal
to do the final things that are needed to complete (something) in a successful way
to make (something, such as a victory) certain