Translation guide
The English word 'roller' covers many physical objects and devices that roll or have rolling parts. This guide organizes the most common meanings for learners and gives natural Japanese equivalents.
A cylindrical tool with a handle used to apply paint to large surfaces.
A small cylindrical object used to curl hair.
The standard word for hair rollers or curlers.
A cylindrical bar placed under something heavy to roll it along.
A simple roller or log used to move heavy items. Common in moving contexts.
A heavy vehicle with a large drum used to flatten surfaces in construction.
A shoe with small wheels for gliding on surfaces.
An amusement park ride with steep drops and sharp turns.
A cylindrical rotating part in machinery.
Generic term for any mechanical roller.
English 'roller' covers many distinct objects. Always specify the type (paint, hair, road, etc.) in Japanese, or use the specific loanword. Using ローラー alone may be ambiguous.
I bought a roller. (ambiguous: paint? hair?)
I'm going to buy a paint roller.
I put rollers in my hair.
More explicit, 'hair curler'.
I create curls with hair rollers.
We moved the heavy stone with rollers.
Also used for industrial rollers or conveyor rollers.
They transport goods on factory rollers.
The standard term for a road roller.
They level the road with a road roller.
Shortened form, common in casual speech.
After the roller passes, it's flat.
General term for roller skates (quad or inline).
I went roller skating in the park.
Specifically inline skates (wheels in a line).
I glide wearing inline skates.
The most common term for roller coaster in Japan, though it literally means 'jet coaster'.
I like riding roller coasters.
Direct loanword, understood but less common than ジェットコースター.
That amusement park has a big roller coaster.
The printer roller got jammed.
Technical term meaning 'rotating roller'.
Adjust the speed of the rotating roller.