掲示板|けいじばんkeijiban[0]heiban (flat)

1. nounbulletin board; display board; notice board
   掲示板けいじばんには「危険きけん！１万いちまんボルト」と書かいてある。↗

   The notice says, "Danger! 10,000 VOLTS."
2. noun, Internetelectronic bulletin board; BBS

• SynonymＢＢＳビー・ビー・エスNeutralEnglish abbreviation for an online forum; an early-internet term that is now rarely used.
• Synonym電子掲示板でんしけいじばんNeutralRefers to online bulletin boards; somewhat formal, though in daily use people also just say 「掲示板」.
• Related掲示板システムけいじばんシステムNeutralTechnical term for the bulletin board system itself; in everyday speech people usually just say 「掲示板」.

「掲示板」 covers both physical boards at schools and stations and online forums. For the online kind specifically, use 「電子掲示板」 or 「ＢＢＳ」; 「掲示板システム」 is the technical term for the system.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 文書ぶんしょを掲示けいじするための板いた。
2. 電子でんし掲示板けいじばんシステム。