Translation guide
How to express the action of rubbing two things together in Japanese, depending on what is being rubbed and the intended effect.
To move two surfaces against each other with friction, often to create heat, sound, or wear.
The most common and versatile way to say 'rub together'. It implies intentional friction between two objects.
手をこすり合わせて温めた。
I rubbed my hands together to warm them up.
石をこすり合わせて火をおこした。
They rubbed stones together to start a fire.
Similar to こすり合わせる, but can also imply adjusting or reconciling differences (e.g., opinions). For physical rubbing, it is slightly more formal or written.
木片を擦り合わせて火種を作る。
Rub pieces of wood together to make an ember.
Means 'to rub' or 'to scrub' one thing against another. When used with 'together', it often needs context or an object like 互いに (each other). Less natural for 'rub together' as a set phrase.
二つの棒を互いにこすった。
I rubbed the two sticks together.
Specifically rubbing palms against each other, often to warm them or in anticipation.
The most natural way to say 'rub one's hands together'. It implies a back-and-forth motion.
寒かったので手をこすった。
It was cold, so I rubbed my hands together.
彼は嬉しそうに手をこすった。
He rubbed his hands together happily.
Emphasizes the mutual rubbing action. Slightly more descriptive than 手をこする.
手をこすり合わせながら待っていた。
I was waiting while rubbing my hands together.
To create a chirping or scraping sound by rubbing body parts or objects.
General phrase for producing sound by rubbing things together.
コオロギは羽をこすり合わせて鳴く。
Crickets chirp by rubbing their wings together.
Can mean 'to rub' or 'to strike' (as in a match). For insect sounds, こすり合わせる is more precise.
虫が羽を擦って音を立てる。
The insect makes a sound by rubbing its wings.
When two surfaces rub against each other and cause abrasion, chafing, or wear.
Describes damage from rubbing. こすれる is the intransitive form meaning 'to be rubbed'.
ロープがこすれて切れそうだ。
The rope is about to break from rubbing together.
Technical term for 'to cause friction'. Used in scientific or formal contexts.
部品が摩擦して摩耗した。
The parts rubbed together and wore out.
こする is a simple transitive verb meaning 'to rub' one thing against another. こすり合わせる specifically means 'to rub together' two things, emphasizing the mutual action. Use こすり合わせる when both objects are actively involved in the rubbing.
タオルで体をこする。
Rub your body with a towel.
手をこすり合わせる。
Rub your hands together.