B1 an informal name for someone or something, especially a name that you are called by your friends or family, usually based on your real name or your character外号;绰号;诨名
More examples
Do you have any nicknames?
As a child, he was given the nickname 'Brackets' because of his bandy legs.
We all had nicknames at school.
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
切換為繁體中文