ＣＭ Common word LinksSentence search for ＣＭSentence search for シー・エムEdit in JMdict Noun1. commercial (radio, TV, etc.); ad; commercial messageSee also コマーシャルメッセージNoun2. construction managementSee also コンストラクションマネージメントNoun3. contract manufacturerNoun4. customer managementNoun5. court martial Discussions Log in to talk about this word.