Jab
JAB /dʒæb/
Informal Neutral
What it really means
The informal British word for an injection or vaccination. "Have you had your jab?" means "have you had your vaccine?" Americans say "shot".
Chinese explanation
英式口语中"打针/接种疫苗"的说法。"Have you had your jab?"意为"你打疫苗了吗？"美式英语说"shot"。
Example conversation
A: I'm off to the chemist for my flu jab.
B: Good idea — mine's booked for Saturday.
A：我去药店打流感疫苗了。
B：好主意——我的约在星期六。
Official sources
Rules and amounts change — confirm important details with the official source.
Go deeper
All Healthcare & NHS
Reviewed by the UK Decoded editorial team
· Last checked 24 July 2026 · Report a mistake