Translation guide
The letter 'v' is not native to Japanese, but it is used in loanwords and foreign names. This guide covers how to pronounce, write, and adapt 'v' in Japanese contexts.
Referring to the letter V in English or as a symbol.
The standard Japanese name for the letter V, borrowed from English 'vee'.
V is one of the letters of the English alphabet.
An alternative spelling using the 'vu' kana, less common but sometimes seen.
この単語にはヴイが含まれています。
This word contains the letter V.
Pronouncing or writing the 'v' sound in Japanese loanwords.
The modern way to represent the 'v' sound is using the character ヴ (vu) followed by a small vowel kana. For example, ヴァ (va), ヴィ (vi), ヴェ (ve), ヴォ (vo). This is common in recent loanwords and names.
Traditionally, the 'v' sound was approximated using the 'b' series (バ, ビ, ブ, ベ, ボ). This is still common in older loanwords and everyday speech.
When 'v' appears alone (like in 'V sign'), it's often pronounced as ブイ.
Vサイン
V sign
Referring to the Roman numeral V (5).
When reading Roman numerals, V is read as ご (five).
第V章
Chapter V
Sometimes the letter name is used, especially in contexts like 'V for victory'.
Vサインは勝利を意味します。
The V sign means victory.
Using V as an abbreviation (e.g., vs., volt, victory).
In Japanese, abbreviations like 'V' are often replaced by the full word or a Japanese equivalent. For example, 'vs.' becomes 対 (たい), 'V' for volt becomes ボルト.
A対B
A vs. B
電圧は5ボルトです。
The voltage is 5 V.
In some set phrases or when the letter itself is iconic, ブイ is used.
Vネック
V-neck
The ヴ series (ヴァ, ヴィ, ヴ, ヴェ, ヴォ) is a modern innovation to represent the 'v' sound more accurately. It is common in writing, especially for foreign names and recent loanwords. However, in casual speech, many Japanese speakers still pronounce it as 'b' (バ行). For example, 'violin' can be ヴァイオリン or バイオリン, with the latter being more common in everyday conversation.
ヴァイオリンを弾きます。
I play the violin. (written/formal)
バイオリンを弾きます。
I play the violin. (spoken/casual)
While ヴ is technically correct for 'v', using it excessively can sound unnatural or overly pedantic. Many established loanwords use バ行, and forcing ヴ may confuse listeners. When in doubt, check a dictionary for the common spelling.