練習（れんしゅう、renshuu）
- practice

The Japanese word 練習練習 (れんしゅう - renshuu) means "practice," "training," or "exercise." It refers to the act of doing something repeatedly to improve a skill, learn something new, or prepare for a performance or event. It can also imply a dedicated effort to master a particular activity.

⚫︎ ピアノの練習を毎日しています。 Translation: I practice the piano every day. ⚫︎ 試合のために、サッカーの練習を頑張っています。 Translation: I am working hard to practice soccer for the match. ⚫︎ 新しい日本語の単語を覚えるために、練習が必要です。 Translation: Practice is necessary to memorize new Japanese words.

You use 練習練習 in various contexts where improvement or preparation is involved. ⚫︎ It is appropriate when discussing activities such as sports, music, academics, or any skill-based endeavor. ⚫︎ You can use it as a noun or as the stem of a verb phrase (e.g., 練習する練習する - to practice). ⚫︎ It can be applied to both physical and mental activities.

⚫︎ The standard way to write 練習練習 is with the kanji 練習. ⚫︎ The reading is れんしゅう (renshuu) in hiragana. ⚫︎ 練習練習 is commonly written with the kanji.

⚫︎ 稽古 (けいこ - keiko): This word is often used for traditional arts, martial arts, or other forms of dedicated training. ⚫︎ トレーニング (toreeningu): This is a loanword from English, meaning "training," often used in sports and fitness contexts. ⚫︎ 訓練 (くんれん - kunren): This often implies more rigorous or formal training, such as military or professional training.

There are not necessarily direct antonyms, as 練習練習 is about action. However, the opposite of the *act* of practicing could be: ⚫︎ さぼる (saboru): To skip or shirk from one's duties or work, which could include skipping 練習練習.

毎日、日本語の文法を練習することが重要です。 ・Translation: It is important to practice Japanese grammar every day. ・Explanation: This sentence emphasizes the importance of daily practice to improve Japanese grammar skills.

彼は試合に勝つために、一生懸命に練習をしました。 ・Translation: He practiced hard to win the match. ・Explanation: This sentence highlights the effort put into 練習練習 with the goal of achieving victory.

The word 練習練習 comes from Chinese, where 練 (ren) means "to refine, train" and 習 (shuu) means "to learn, practice." In Japanese, these characters combined to form the word representing the act of repeatedly doing something to gain proficiency.