予備（よび、yobi）
- spare / reserve

The Japanese word 予備 （よび） primarily means "spare," "reserve," "backup," or "preparation." It refers to something kept in readiness for future use, in case the primary item is unavailable, insufficient, or fails. It implies having an extra amount or resource to cover potential needs. The core concept is about planning ahead and having something on hand for contingencies.

⚫︎予備のペンを持っていますか？ Translation: Do you have a spare pen? ⚫︎地震に備えて、食料と水を予備しておきましょう。 Translation: Let's keep food and water in reserve for earthquakes. ⚫︎彼は予備のチームでプレイする予定です。 Translation: He is scheduled to play on the reserve team.

⚫︎予備 is used in various contexts, including: * Referring to spare parts or supplies. * Indicating a backup plan or a secondary option. * Describing a reserve of resources, such as money, time, or personnel. * In sports, it's used to describe a reserve player or team. * It's a versatile word used in both formal and informal situations. * Generally, it implies forward-thinking and planning for potential problems or future needs.

⚫︎予備 is typically written in kanji as 予備. ⚫︎ The reading is よび in hiragana. ⚫︎ There are no significant variations in okurigana. ⚫︎ It's rarely written in katakana.

⚫︎ スペア (supea): "spare" (borrowed from English, often used for parts or items) ⚫︎ 控え (hikae): "reserve," "backup" (can refer to a reserve player, for example) ⚫︎ バックアップ (bakkuappu): "backup" (borrowed from English, common in technical contexts) ⚫︎ 補足 (hosoku): "supplement," "addition" (can be used in certain contexts related to additional information or resources) ⚫︎ 準備 (junbi): "preparation" (can be a synonym in some cases, although 予備 implies having something specifically in reserve rather than just the general activity of getting ready)

⚫︎ 主要 (shuyou): "main," "primary" ⚫︎ 本物 (honmono): "real," "genuine" (implies the original, not a 予備) ⚫︎ 不足 (fusoku): "lack," "shortage" (the opposite of having a 予備)

試験のために、予備のノートを用意しておきました。 ・Translation: I prepared a spare notebook for the exam. ・Explanation: This sentence demonstrates the use of 予備 to indicate a backup notebook for studying, just in case the main one is unavailable or runs out of space.

万が一の事態に備えて、予備の資金を確保しておきましょう。 ・Translation: Let's secure reserve funds in case of an emergency. ・Explanation: This sentence illustrates the use of 予備 to emphasize the need for having a financial backup plan for unforeseen circumstances.

The kanji 予 (yo) means "beforehand," "in advance," or "previous." The kanji 備 (bi) means "prepare," "provide," or "equip." Together, 予備 literally means "prepared beforehand" or "provision for the future," accurately reflecting its meaning of a spare or backup item or resource.