Translation guide
A container for carrying water, typically reusable. In Japanese, the most common term is 水筒 (suitō), but other words exist depending on material, shape, and context.
reusable water bottle
A portable container for drinking water, often used at school, work, or outdoors.
The standard word for a reusable water bottle, often cylindrical and carried in a bag. Used by all ages.
I bring a water bottle to school every day.
A trendy term for a personal reusable bottle, often used in eco-friendly contexts. Common among young adults.
Direct loanword from English, used mainly in product names or sports contexts. Not as common in daily conversation.
A single-use bottle of water purchased from a store.
Literally 'PET bottle water'. This is the most natural way to refer to bottled water in a plastic container.
A rugged, often large bottle used for hiking, sports, or gym.
Specifically a sports water bottle, often with a squeeze top or straw.
A bottle that keeps drinks hot or cold.
Specifically a bottle with thermal insulation. Often used for both hot and cold drinks.
While understood, ウォーターボトル sounds like a product name or English. Use 水筒 for a reusable bottle and ペットボトルの水 for a store-bought plastic bottle.
水筒 is the general term for any portable water container, often used by children and adults. マイボトル is a trendy, eco-friendly term popular among young people and in cafes.
Don't forget your water bottle.
この水筒は保温機能があります。
This water bottle has a thermal function.
カフェでマイボトルにコーヒーを入れてもらった。
I had them put coffee in my reusable bottle at the café.
This water bottle is lightweight and easy to carry.
I bought a bottle of water at the convenience store.
Refers to mineral water, often in a bottle. Can imply bottled water in general.
One bottle of mineral water, please.
I take a sports bottle to the gym.
Also used for larger, durable bottles for outdoor activities.
You need a large water bottle for mountain climbing.
In winter, I put hot tea in a thermos.
Literally 'magic bottle', a traditional term for a vacuum flask. Often used for larger, older-style thermoses.
We put coffee in a thermos and went on a picnic.
I refilled my water bottle at the fountain.