byword

mastery
UK /ˈbaɪ.wə(ɹ)d/ US /ˈbaɪ.wɚd/noun

card 1 of 6 · context meaning

What does 'byword' mean in this sentence?

"I know you and Harry are inseparable. Surely for that reason, if for none other, you should not have made his sister's name a by-word."