Yuiitsu Muni (唯一無二 - One and Only)

Yuiitsu Muni

If you want to express something that is only one thing in the world, you can use the four-character idiom 'yuiitsu muni' (唯一無二).

'Yui' (唯) means "only," 'itsu/ichi' (一) means "one," 'mu' (無) means "nothing" or "no," and 'ni' (二) means "two."

Therefore, 'yuiitsu' (唯一) means "only one," 'muni' (無二) means "there are not two," and the combination is "it is only one, there are no same things."

This idiom is often used when describing a very important thing.

You can translate it into English as "one and only."

唯一無二

この世でただ一つしかないものを表す四字熟語に、「唯一無二」があります。

「唯」は "only"、「一」は "one"、「無」は "nothing/no"、「二」は "two" を意味します。

このため、「唯一」は "only one"、「無二」は "there are not two" という意味であり、「唯一無二」は "it is only one, there are no same things" となります。

この熟語は、とても大切なものを表現する際によく使います。

英語では "one and only" と表現することができます。

I prefer saying one in a million, even though your translation is more accurate

• If you want to express something that is only one thing in the world, you can use the four-character idiom 'yuiitsu muni' (唯一無二).
• If you want to express something that is the only one thing in the world, you can use the four-character idiom 'yuiitsu muni' (唯一無二).

  OR: .. that is UNIQUE in the world ...

• 'Yui' (唯) means "only," 'itsu/ichi' (一) means "one," 'mu' (無) means "nothing" or "no," and 'ni' (二) means "two."
• This sentence is perfect! No correction needed!

• Therefore, 'yuiitsu' (唯一) means "only one," 'muni' (無二) means "there are not two," and the combination is "it is only one, there are no same things."
• Therefore, 'yuiitsu' (唯一) means "only one," 'muni' (無二) means "there are not two," and the combination is "there is only one; nothing else is the same."

  OR: ... only one; there is nothing like it.

• This idiom is often used when describing a very important thing.
• This sentence is perfect! No correction needed!

• You can translate it into English as "one and only."
• This sentence is perfect! No correction needed!

Good! :)