Quick Reference

Meaning & Definition

Juusu (ジュース) looks like an easy freebie for English speakers — it’s just “juice,” right? Order one at a vending machine expecting apple or orange juice, and you might end up holding a cold can of cola instead. In Japan, juusu has quietly drifted away from its English root to mean almost any sweet, non-alcoholic cold drink.

In everyday Japanese, juusu (ジュース) is a much broader word than the English “juice” it borrows its sound from. Colloquially, it covers cola, flavored soda, sports drinks, and other sweet cold beverages — not just drinks pressed from fruit. A parent asking a child nani juusu nomu? (“which juusu do you want to drink?”) is just as likely to be offering a choice between Coca-Cola and Fanta as between apple and orange juice. If you specifically mean 100% fruit juice with nothing added, Japanese has a separate, more precise term: kajuu 100% (果汁100%), which literally means “fruit juice 100%” and appears printed on drink labels and vending machine buttons to distinguish real juice from the sweetened juusu catch-all. So the safest mental model is: juusu = “sweet cold drink,” and kajuu = “actual fruit juice.”

How to Use It

The number one mistake English speakers make is assuming juusu always means fruit juice, then being confused when a waiter brings cola or a friend hands over a can of soda after being asked for juusu. If you specifically want fruit juice, ask for kajuu or check the label for kajuu 100% before buying from a vending machine. A second, unrelated trap: ジュース is also the standard Japanese tennis term for “deuce” (as in a 40-40 score), borrowed from a different English word that happens to sound almost identical when written in katakana — context (drink menu vs. tennis match) is the only way to tell them apart. Also note that when kids ask for juusu, they usually mean any sweet drink in general, not specifically fruit juice, so don’t be surprised by their choice.

Example Sentences

Cultural Context

Japan’s vending machine culture (jidouhanbaiki, 自動販売機) is central to why juusu broadened so much in meaning. With millions of vending machines on street corners nationwide stocking everything from cola and iced coffee to sports drinks and actual fruit juice side by side, the word juusu naturally came to describe the whole category of “sweet cold drink you buy from a machine” rather than one specific product. Drink labels and vending machine buttons often use kajuu (果汁) with a percentage when a manufacturer wants to advertise real fruit content, which is precisely why that phrase became the go-to way to specify “actual juice” once juusu had drifted toward the generic.

This kind of semantic drift is common with English loanwords absorbed into Japanese: the borrowed word keeps its foreign sound but settles into a locally useful meaning that no longer matches the source language exactly. Juusu is a clear example — it was borrowed for “juice” but expanded to fill the practical need for a casual, catch-all word for sweet drinks in a culture built around drink vending machines and convenience stores, making it one of the more useful words to understand precisely before ordering at a restaurant or shopping for drinks.

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