CM

CM

1. (international standards) ISO 3166-1 alpha-2 country code for Cameroon.

   Synonym: CMR (alpha-3)

• MC

Sense "commercial" is a borrowing from Japanese CM (CM, “promotional video”), from English commercial + message.

CM (countable and uncountable, plural CMs)

1. (India, Pakistan) Initialism of chief minister.

   Coordinate term: PM (“prime minister”)

2. (Canada) A member of the Order of Canada.
3. (Japan) Initialism of commercial message.
4. (chess) Initialism of Candidate Master.
5. (astronautics) Initialism of command module.

   Coordinate terms: (related) LEM/LM, SM, OM

6. (cryptography) Initialism of cryptographic module.
7. (engineering, uncountable) Initialism of configuration management.
8. (military) Initialism of cruise missile.

   Coordinate terms: (derived) CMCA, ALCM, GLCM, SLCM

   Coordinate terms: FFG, DDG, DLG, DHG, DEG, DCG, CCG, CLG, CAG, CHG, CBG, BCG, SSG, SSGN, CMCA

9. (ring theory) Initialism of Cohen-Macaulay.
10. (music, archaic) Initialism of common meter.

CM (uncountable)

1. (medicine) Initialism of College of Medicine.
2. (US, astronautics) Initialism of Command Module (“Apollo Command Module”).

• (Command Module): Command Module on Wikipedia.Wikipedia (Apollo)

• M/C, MC, Mc, Mc-, mc

From コマーシャルメッセージ (komāsharu messēji, literally “commercial message”).

• (Tokyo) シーエム [shìíémú] (Heiban – [0])
• IPA^(key): [ɕiːe̞mɯ̟ᵝ]

C(シー)M(エム) • (shīemu) 

1. commercial message: a commercial or ad on television
   • 2007 April 23, Kenshi Hirokane, “Step 5: Five O'Clock World 1”, in ヤング島耕作　主任編 [Young Shima Kōsaku: Manager Arc], volume 1 (fiction), Tōkyō: Kōdansha, →ISBN, pages 72–73:

     僕(ぼく)はこのポスターは好(す)きですね　好(す)きだけど……何(なん)のＣ(シー)Ｍ(エム)かわからないんじゃないですか？

     Boku wa kono posutā wa suki desu ne Suki da kedo…… Nan no shīemu ka wakaranai n ja nai desu ka?

     I like this poster… But we still don’t know what the commercial’s gonna be like, no?

     実(じつ)は　そこがポイントなんです　商(しょう)品(ひん)訴(そ)求(きゅう)をあえて隠(かく)して初(はつ)芝(しば )Ａ(エー)Ｖ(ブイ)機( き)器(き)のイメージだけを出(だ)したいんです

     Jitsu wa soko ga pointo na n desu Shōhin sokyū o aete kakushite Hatsushiba ēbui kiki no imēji dake o dashitai n desu

     That’s the point, actually. We want to keep the product’s appeal secret and just put out an image of Hatsushiba AV equipment.

     なるほど

     Naruhodo

     I see

• 広(こう)告(こく) (kōkoku): advertisement

CM ?

1. Abbreviation of Campeche.