Translation guide
The English word 'rocket' can refer to a spacecraft, a missile, or a firework. In Japanese, the most common equivalent is ロケット (roketto), a loanword from English. However, depending on the context, other words like 宇宙船 (uchūsen) for 'spaceship' or 花火 (hanabi) for 'firework' may be more appropriate. This guide helps learners choose the right Japanese expression based on the intended meaning.
Referring to a vehicle designed to travel through space, propelled by rocket engines.
The most common and direct translation for 'rocket' as a spacecraft or launch vehicle. Used in news, science, and everyday conversation.
そのロケットは宇宙へ飛び立った。
The rocket launched into space.
新しいロケットの開発が進んでいる。
Development of a new rocket is progressing.
Means 'spaceship' or 'spacecraft'. Use when emphasizing the vehicle as a manned or unmanned craft rather than just the propulsion system.
Referring to a rocket-propelled weapon, such as a military missile.
Referring to a firework that shoots into the sky, often called a 'rocket' in English.
A compound word combining 'rocket' and 'firework'. Specifically refers to a firework that launches like a rocket.
子供たちがロケット花火を楽しんだ。
The children enjoyed the rocket fireworks.
Referring to the propulsion system itself, often in scientific or engineering contexts.
Referring to the leafy green vegetable also known as arugula or roquette.
While ロケット can technically refer to the vegetable, it is rarely used and may cause confusion. Always use ルッコラ for arugula.
ロケット emphasizes the propulsion method and is often used for unmanned launch vehicles. 宇宙船 is a broader term for any spacecraft, especially manned ones.
ロケットは打ち上げに成功した。
The rocket was launched successfully.
彼らは基地にロケット弾を撃ち込んだ。
They fired rockets at the base.
サラダにルッコラを入れるのが大好きです。
I love rocket in my salad.
宇宙船は無事に地球に帰還した。
The spacecraft returned safely to Earth.
Specifically means 'rocket projectile' or 'rocket bomb'. Used in military contexts.
敵がロケット弾を発射した。
The enemy fired a rocket.
While 'missile' is a broader term, it is often used interchangeably with 'rocket' in military contexts. Use when the weapon is guided.
ミサイルが発射された。
A missile was launched.
General term for 'launching fireworks' or 'skyrockets'. Can be used for any firework that is launched into the air.
夏祭りで打ち上げ花火を見た。
We watched the skyrockets at the summer festival.
Direct loanword for 'rocket engine'. Used in technical discussions.
このロケットエンジンは強力だ。
This rocket engine is powerful.
Means 'rocket propulsion'. Used when discussing the method of propulsion.
ロケット推進の原理を学ぶ。
Learn the principles of rocket propulsion.
The most common Japanese word for arugula/rocket. Borrowed from Italian 'rucola'.
サラダにルッコラを加える。
Add rocket to the salad.
Sometimes used as a direct loan from English, but ルッコラ is much more common and understood.
このロケットは新鮮ですね。
This rocket is fresh, isn't it?