noun
seamstress; needleworker
A woman who sews, especially as a profession or in a historical context. The honorific お gives a polite or somewhat old-fashioned feel.
祖母は若い頃、お針子として働いていた。
My grandmother worked as a seamstress when she was young.
このドレスは腕のいいお
I had this dress made by a skilled seamstress.
Compound of honorific prefix お + 針 (hari, 'needle') + 子 (ko, 'child' or 'person'), literally 'honorable needle person'. The exact historical derivation is uncertain, but it has long been used to refer to a female sewer.