活動（かつどう、katsudou）
- activity

The Japanese word 活動 (かつどう) generally translates to "activity," "action," or "movement." It encompasses a wide range of actions, endeavors, or operations. The specific meaning depends on the context, but it always implies some form of engagement or involvement. The word 活動 can refer to physical activity, social activity, professional activity, and more. It emphasizes doing something or being engaged in something. It can also refer to activity of a group or organization.

⚫︎ ボランティア活動 Translation: Volunteer activities ⚫︎ 経済活動 Translation: Economic activities ⚫︎ 学校の活動 Translation: School activities

You can use 活動 in various contexts to describe different kinds of engagements. It is often used to describe planned actions, organized events, or ongoing processes. It is a versatile word, appropriate for both formal and informal situations. For example, if you are discussing what a club does, you might say, このクラブの活動は何ですか？ (What are the activities of this club?). Or, if you want to say that someone is active, you may say 彼はとても活発に活動しています。 (He is very active).

活動 is primarily written with the kanji 活 (katsu) meaning "lively," "to live," or "to be active" and 動 (dou) meaning "movement," "to move," or "to change." The reading is usually written in hiragana as かつどう. There are no other common ways to write this word. The okurigana (the suffix hiragana) is fixed.

⚫︎ 行動 (こうどう) - action, behavior ⚫︎ 運動 (うんどう) - exercise, movement ⚫︎ 動き (うごき) - movement, motion ⚫︎ 事業 (じぎょう) - project, business

⚫︎ 停止 (ていし) - stop, suspension ⚫︎ 休止 (きゅうし) - suspension, break ⚫︎ 静止 (せいし) - stillness, rest ⚫︎ 不活動 (ふかつどう) - inactivity

地域社会の文化活動を支援する。 ・Translation: To support cultural activities in the local community. ・Explanation: This sentence describes the act of supporting cultural initiatives. The word 活動 here refers to cultural endeavors.

今日は、一日中、激しい運動活動をした。 ・Translation: Today, I did vigorous physical activity all day. ・Explanation: This sentence uses 活動 in context of physical activity. It describes the engagement in a physical activity.

The kanji 活 (katsu) comes from the idea of "life" or "being active" while 動 (dou) represents "movement" or "action." Thus, the combination suggests the dynamic nature of something that is alive and engaged in action.