NBD
NBD (abbreviation) means No big deal, used to say that something is unimportant or that no apology or thanks is needed. Example: “Don't worry about being late, nbd.”
How to Use NBD
Learner’s notesIn plain EnglishIt doesn't matter.
Informal texting and chat shorthand; usually lower case.
Fill the Gap
Can you complete this real example?
Don't worry about being late, _____.
Etymology
An initialism of no big deal.
Frequently Asked Questions
What does NBD mean in a text message?
No big deal. It plays down whatever has just been mentioned, either to reassure someone that they need not apologise or to brush off a favour.
Is NBD ever sarcastic?
Often, yes. Tacked onto something genuinely impressive, it is mock modesty, as in 'just finished my first novel, nbd'. The gap between the achievement and the shrug is the joke.
Can I use NBD at work?
Only in casual internal chat, and only with people you know well. In email or with clients, write 'no problem' or 'not a problem at all' instead.