校長（こうちょう、kouchoう）
- principal

The Japanese word 校長 (こうちょう, *kōchō*) means "principal," "headmaster," or "school principal." It refers to the person in charge of a school. This individual is responsible for the overall management and administration of the educational institution, including overseeing teachers, staff, students, and the school's operations. The term applies to various levels of schools, from elementary schools to universities. The word 校長 conveys authority and leadership within an educational setting.

⚫︎山田先生は新しい小学校の校長です。 Translation: Mr. Yamada is the principal of the new elementary school. ⚫︎校長先生は全校生徒に挨拶をしました。 Translation: The principal gave a speech to all the students. ⚫︎うちの学校の校長はとても親切です。 Translation: The principal of our school is very kind.

You use 校長 when you are referring to the principal of a school. It's appropriate in formal and informal contexts, depending on the level of politeness you want to convey. You might use it in conversations with teachers, students, or parents when discussing school-related matters. When speaking directly to the 校長, you would typically add "-先生" (sensei, "teacher," used as a title of respect) after the word. For example, 校長先生 (こうちょうせんせい, *kōchō sensei*).

校長 is typically written in kanji and read as こうちょう in hiragana. There are no other common ways to write this word, and the okurigana (hiragana added to kanji) doesn't have variations. The kanji represents the meaning: 校 (kō) means "school," and 長 (chō) means "chief," "head," or "leader."

There aren't many direct synonyms for 校長, as it is a specific job title. However, the phrase 学校の先生 (gakkō no sensei, "school teacher") could be used in a general context if you do not know the specific role of an educator at school.

There isn't a direct antonym for 校長. It is a specific role, not an adjective. People who report to the 校長, such as teachers or staff members, can be seen as the opposite in terms of the hierarchy in the school.

明日の朝、校長先生に会う予定です。 ・Translation: I plan to meet the principal tomorrow morning. ・Explanation: This sentence indicates a scheduled meeting with the person in the role of the 校長.

校長室は職員室の隣にあります。 ・Translation: The principal's office is next to the staff room. ・Explanation: This sentence describes the location of the principal's office, showing the importance of the 校長 in the school.

The word 校長 is a compound word formed from the kanji 校 (kō), meaning "school," and 長 (chō), meaning "head" or "chief." This combination accurately reflects the role of the principal as the head of the school. The use of these characters to form this term is a direct adaptation from Chinese, where these characters also carry similar meanings.