A。ちなみに B。(A. Chinamini B.): meaning and how to use it (JLPT N2 grammar)

At a glance

ちなみに means "by the way" or "incidentally". After statement A, it adds B, a side note that is related to A but is not its main point.

A。ちなみに、B。

会議かいぎは三時さんじからです。ちなみに、場所ばしょは二階にかいの会議室かいぎしつです。 The meeting starts at three. By the way, it's in the meeting room on the second floor.

ちなみに is a connector. It does not change form.

Point	Details
Position	At the start of sentence B, after statement A. Usually followed by 、
What B is	Extra, related information, or a question asking for a related detail
Register	Neutral. Used in polite and casual speech, and in writing
Example	新あたらしいかばんを買かったんだ。ちなみに、セールで半額はんがくだったよ。