How to Say "Multi" in Japanese

マルチ

maruchi

The Japanese word for the prefix 'multi-' is マルチ (maruchi).

マルチ is primarily used as a prefix in technical, computing and mathematical contexts to form compound words, such as 'multi-core' or 'multi-tasking'.

What does it mean word for word?

マルチ is a loanword from English, written in Katakana, representing the English prefix 'multi-'.

maruchi

In casual conversation, マルチ is often shorthand for 'multi-level marketing' schemes. Because of the negative association with scams, using the word alone in a business context can sometimes sound suspicious.
In the context of Japanese gardening, マルチ refers to 'mulching'. A gardener using this word is likely talking about plastic sheeting for soil rather than multiple purposes.
The term マルチタレント describes a 'multi-talent' celebrity. These are entertainers who simultaneously work as actors, singers and variety show personalities.

今日のコンピュータには大抵マルチコアプロセッサが装備されている。
Most computers made today are equipped with multi-core processors.
This sentence shows how マルチ is used in the term 'multi-core processor'.
Tatoeba #866803 by thyc244, translation #378624 by CM
マルチブート環境のＰＣでは搭載ＯＳと同数のライセンスが必要ですか？
Do you need as many licenses as you have operating systems installed in a multi-boot PC?
This sentence demonstrates the use of マルチ in the term 'multi-boot'.
Tatoeba #389276 by blay_paul, translation #389277 by blay_paul
その会議には多くの参加者がいました。
There were many participants in that meeting.
複数の言語を話すことは非常に役に立ちます。
Speaking several languages is very helpful.
今日、たくさんの人に会いました。
I met many people today.
このレストランではいろんな種類の料理が提供されています。
This restaurant offers various types of cuisine.
いくつもの事務所がこの地域にあります。
There are several offices in this area.
北海道にはあまたの美しい景色があります。
Hokkaido offers countless beautiful sceneries.
このマルチツールはとても便利です。
Kono maruchitsūru wa totemo benri desu.
This multi-tool is very convenient.

At a camping gear store.

美咲 Misaki

このマルチツール、使いやすそうですね。
Kono maruchitsūru, tsukaiyasusō desu ne.
This multi-tool looks easy to use.
健太 Kenta

はい、美咲さん、本当におすすめですよ。
Hai, Misaki-san, hontō ni osusume desu yo.
Yes, Misaki, I really recommend it.
美咲 Misaki

一台で何でもできるんですか？
Ichidai de nandemo dekiru n desu ka?
Can it do everything with just one tool?
健太 Kenta

ええ、キャンプには最適です。
Ee, kyanpu ni wa saiteki desu.
Yes, it is perfect for camping.

Sources

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