講師|こうしkoushi[1]atamadaka (head-high)

1. nounspeaker; lecturer
   講師こうしは本題ほんだいから脱線だっせんしてしまった。↗

   The speaker wandered away from the subject.
2. nounlecturer (at a university or college); instructor
   正確せいかくに言ゆうと私は大学だいがく講師こうしです。↗

   Specifically, I'm a university lecturer.
3. nounpart-time teacher
4. nountutor (at a cram school)

• Synonym弁士べんしWrittenWritten word for an orator or skilled public speaker; also the live narrator of silent films, so it carries an old-fashioned, period flavor.
• Synonym講演者こうえんしゃNeutralNeutral word for the person speaking at a lecture or talk, stressing a one-off speech; 「講師」 also covers university lecturers and cram-school teachers.
• Antonym生徒せいとNeutralNeutral word for a junior or senior high school pupil; the one receiving instruction, standing opposite the teaching 「講師」.
• Antonym学生がくせいNeutralNeutral word for a student, especially at university; like 「生徒」, the one being taught rather than the one giving the lessons.
• Antonym聴講生ちょうこうせいWrittenWritten term for an auditing student who attends a university course without enrolling; the listener, standing opposite the 「講師」.

Use 「講師」 for the speaker at a lecture, a university lecturer, or a cram-school teacher. For someone giving just a one-off talk, pick 「講演者」. 「学生」 and 「生徒」 are the people being taught.

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

1. 平安へいあん時代じだい、諸国しょこくの国分寺こくぶんじに置おかれた僧侶そうりょを監督かんとくし、経典きょうてんを講こうずる職しょく。
2. （こうし）
3. 講演こうえん、講義こうぎにおいて話はなしをする者もの。
4. 上記じょうきに由来ゆらいする教授きょうじゅ・准教授じゅんきょうじゅに準じゅんずる大学だいがくの職種しょくしゅ