btw
3 synonyms for btw, grouped by meaning and by how common each one is.
Abbreviation — By the way; used to introduce a small extra remark that is not the main point of the message.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
by the way
on another note
How to use btw
The word patterns that sound natural to a native speaker.
btw, just so you know
oh btw
Fine in messages and casual email; write it out in full in anything formal.
Etymology
An initialism of by the way.
Full origin of btw →Frequently asked questions
What is the difference between btw and fyi?
Btw means by the way and adds a passing side remark to something you were already discussing. Fyi means for your information and flags something the reader needs to know, often forwarded on its own. Fyi points at the information; btw softens an aside.
Is it rude to use btw at work?
In internal chat and quick email it is normal and reads as friendly. In external, formal or first-contact messages, write by the way in full, since abbreviations can look careless to someone who does not know you.
