English
Soy sauce
醤油
しょうゆ
shouyu
| Japanese | Romaji | Register | When to use it |
|---|---|---|---|
| 醤油 しょうゆ |
shouyu | Neutral | The everyday word, from the supermarket shelf to the restaurant table. |
| お醤油 おしょうゆ |
oshouyu | Polite | The same word softened with o-. Common at the table and in home cooking. |
| むらさき むらさき |
murasaki | Slang | Counter jargon at traditional sushi restaurants. Not at home or at conveyor-belt shops. |
The word travelled into English as soy sauce, but the Japanese original splits into a plain form, a politer everyday form and a piece of sushi counter jargon that sounds like a colour.
shouyu is the word printed on the bottle and the word you say out loud. It needs no softening in a shop, a kitchen or a restaurant, and nobody will find it blunt. At a table, though, Japanese speakers reach for oshouyu remarkably often. The お prefix is the same politeness marker that turns 茶 into お茶, and with everyday condiments it has become close to automatic in home cooking and when asking someone to pass something. Neither form is wrong and the meaning does not change; oshouyu simply sounds gentler in the moment. murasaki belongs to one specific room. It is old counter jargon from Edomae sushi restaurants, and the name is usually explained by the purplish cast that fresh soy sauce shows against a dish rather than the flat black of a household bottle. You will not hear it at a conveyor-belt shop or in a home kitchen, and a customer who uses it can come across as performing insider knowledge rather than speaking naturally.
Everyday use
醤油を少しだけかけてください。
Shouyu o sukoshi dake kakete kudasai.
Please put just a little soy sauce on it.
Casual / Social Media
お醤油取ってくれる？
Oshouyu totte kureru?
Could you pass the soy sauce?
Formal / Cultural context
寿司屋では醤油のことをむらさきと呼びます。
Sushiya de wa shouyu no koto o murasaki to yobimasu.
At sushi restaurants, soy sauce is called murasaki.
The costliest mistake is the word ソース. English lends sauce to almost anything, but in Japanese ソース on its own means the thick spiced Worcestershire-style sauce poured over tonkatsu and yakisoba, which is an entirely different bottle. Ask for ソース expecting soy sauce and something sweet and tangy will arrive on your food. ソイソース does not work either; it reads as English written in katakana rather than a Japanese word, and most listeners will pause to decode it. It is also worth knowing that shouyu is not one flavour. 濃口 is the dark type most households keep, while 薄口 is lighter in colour but saltier rather than milder, which reverses what the pale colour suggests to anyone assuming light means less.