A。ちなみに B。

When to use

Formal-leaning "incidentally" - adds a related side note, common in writing too.

Explanation

The ちなみに grammar point is used to provide additional information or a side note about a topic that has been previously mentioned. It can be translated as 'by the way' or 'incidentally' in English. This grammar point is typically used to give further context, background information, or a slight change in topic.

• 今日こんにちは授業じゅぎょうがありません。ちなみに、明日あしたも休やすみです。

  There's no class today. By the way, tomorrow is also a day off.

  Kyou wa jugyou ga arimasen. Chinamini, asu mo yasumi desu.

• この店みせのラーメンは美味おいしいです。ちなみに、餃子ぎょーざもおすすめです。

  The ramen at this shop is delicious. By the way, their gyoza is also recommended.

  Kono mise no ramen wa oishii desu. Chinamini, gyoza mo osusume desu.

• 彼かれは今日こんにちは遅刻ちこくしました。ちなみに、昨日きのうは欠席けっせきしました。

  He was late today. By the way, he was absent yesterday.

  Kare wa kyou wa chikoku shimashita. Chinamini, kinou wa kesseki shimashita.

• 映画えいがは面白おもしろかったです。ちなみに、原作げんさくの方ほうがもっといいですよ。

  The movie was interesting. By the way, the original work is even better.

  Eiga wa omoshirokatta desu. Chinamini, gensaku no hou ga motto ii desu yo.

Topic Shift (By The Way)

• A。そういえば B。~souiebaN2Recalling something related to A; 'speaking of which', 'by…
• ～ついでに〜tsuide niN3Do something while or after completing another action…
• ところでtokorodeN3Used for changing the topic or bringing up a new topic…
• A それはそうと B。A Sore wa sou to BN2Changing the topic; 'by the way', 'speaking of which'.
• A。さて B。A. Sate B.N2Indicates a sudden change or shift in the topic or…

Compare when to use each