加速（かそく、kasoku）
- acceleration

The Japanese word 加速 (かそく) means "acceleration" or "to accelerate." It refers to an increase in speed or rate, or the act of causing something to increase in speed or rate. It can be used in various contexts, from physical movement to the progress of a project or the growth of a business. It encompasses the idea of gaining momentum and moving faster. The core concept is a change in velocity over time, meaning something is getting faster.

⚫︎車が加速する。 Translation: The car accelerates. ⚫︎経済の成長が加速している。 Translation: The economic growth is accelerating. ⚫︎プロジェクトを加速させるために、新しい方法を試した。 Translation: We tried a new method to accelerate the project.

⚫︎加速 is a versatile word, and you can use it in situations where something is speeding up. ⚫︎It can be used as a noun (acceleration) or as a verb 加速する (to accelerate). ⚫︎When used as a verb, it is a suru verb, and it can conjugate like other suru verbs. For example, 加速し始めた (began to accelerate), 加速したい (want to accelerate), or 加速した (accelerated).

⚫︎The word is typically written in kanji as 加速. ⚫︎The reading is かそく in hiragana. ⚫︎There is no common usage in katakana. ⚫︎The okurigana (the suffix hiragana) for the verb form is する (suru). ⚫︎There is only one accepted way to write this word.

⚫︎スピードアップ (supiido appu): Speed up ⚫︎促進 (そくしん): Promotion, acceleration (more formal) ⚫︎早める (はやめる): To hasten, to speed up (often used for time) ⚫︎速める (はやめる): To speed up (similar to 早める)

⚫︎減速 (げんそく): Deceleration, to decelerate ⚫︎減速する (げんそくする): To decelerate ⚫︎遅くなる (おそくなる): To slow down ⚫︎速度を下げる (そくどをさげる): To reduce speed

このエンジンの力で、車はあっという間に加速した。 ・Translation: With the power of this engine, the car accelerated in no time. ・Explanation: This sentence describes how quickly a car gained speed due to the engine.

彼はプロジェクトの加速を助けるために、新しいチームメンバーを雇った。 ・Translation: He hired new team members to help accelerate the project. ・Explanation: This sentence explains how someone took action to make a project progress faster.

⚫︎加速 is a compound word formed from two kanji. ⚫︎加 (か) means "to add" or "increase." ⚫︎速 (そく) means "speed" or "quickness." ⚫︎Therefore, 加速 literally means "to add speed" or "increase speed."