教室|きょうしつkyoushitsu[0]heiban (flat)

1. nounclassroom; lecture room
   教室きょうしつは生徒せいとでいっぱいだった。↗

   The classroom was full of pupils.

   ＬＬ教室きょうしつを使つかってもよいですか。↗

   May we use the language lab?
2. noundepartment (in a university)
3. nounclass; lessons; course
   エアロビクス教室きょうしつに一いち日にち入学にゅうがくしたいのですが。↗

   I'd like to try out the aerobics class for a day.
4. nounschool (for a particular discipline); teaching establishment

• SynonymクラスルームNeutralLoanword for the classroom as a room; uncommon in daily conversation, seen mostly in English-education contexts or product names.
• Synonym教場きょうじょうWrittenWritten/formal word for a place of instruction, academic or martial; also used at universities and police academies; rare in daily speech.
• RelatedクラスNeutralRefers to the group of students or the lessons themselves, not the room; 「教室」 stresses the room where lessons take place.
• Related学級がっきゅうWrittenA class formed by grouping students into set numbers; mostly institutional or administrative use, as in 「学級崩壊」 and 「学級委員」.

Use 「教室」 for the room where lessons are held. For the group of students or the course, use 「クラス」; 「学級」 appears in formal school contexts. 「クラスルーム」 and 「教場」 are rare in everyday speech.

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

1. 学校がっこうにおいて授業じゅぎょうを行おこなう部屋へや。
2. 学校がっこう以外いがいで特定とくていのことを教授きょうじゅする施設しせつ。
3. 書籍しょせきや雑誌ざっしで教授きょうじゅを目的もくてきとした特定とくていの事項じこう。