4 in Japanese
四

Updated June 2026

4 in Japanese is 四, written よん in hiragana and read yon (also shi). Yon or shi: the unlucky kanji

NUMERAL

4

KANJI

四

HIRAGANA

よん

or し

ROMAJI

yon

or shi

Counter-attached forms

How 4 attaches to common counters. Each links to the per-counter deep-dive.

People

yo-nin

Long objects

yon-hon

Flat objects

yon-mai

Small objects

yon-ko

Native (tsu)

yottsu

Animals

yon-hiki

Time (o'clock)

yo-ji

Age

yon-sai

Yen

yon-en

Cultural context

Tetraphobia: the reading shi sounds identical to 死 (death). Hospitals and hotels in Japan, China, and Korea often skip room 4. Gifts in sets of 4 are avoided. Yon is the preferred reading in counting and most contexts; shi survives in fixed compounds (shi-gatsu = April, shi-ki = four seasons, shi-kakkei = square). Source: Wikipedia "Japanese superstitions" and the NINJAL corpus on tetraphobia frequency.

Daiji formal form (for cheques and contracts)

肆Used on bank cheques and contracts to prevent forgery of the simpler kanji 四.

Real sentence examples

四つ角で右に曲がってください (yotsukado de migi ni magatte kudasai): turn right at the four-way intersection.

四月の最初の日は新年度の始まりです (shi-gatsu no saisho no hi wa shin-nendo no hajimari desu): the first of April is the start of the new fiscal year.

Pronunciation and morphology notes

Four has two readings. Yon (native, four strokes in kanji is misleading - actually five strokes) is preferred when counting, and when attaching to most counters: yon-hon, yon-mai, yon-ko, yon-sai, yon-en. Shi survives in months (shi-gatsu = April), fixed compounds (shi-kakkei = square, shi-ki = four seasons), and the people counter (yo-nin, where the further contraction yo replaces yon). Time uses yo: yo-ji = 4 o’clock. Day-of-month is yokka. The daiji form 肆 is rare in modern use but appears in some traditional contracts.

Frequently asked questions

How do you write 4 in Japanese?

4 is written 四 in kanji and よん in hiragana. In romaji (modified Hepburn) it is yon, also read shi in some contexts.

What is 4 in hiragana?

4 in hiragana is よん (or し). Hiragana spells out the reading yon phonetically; the kanji form is 四.

What is the formal (daiji) form of 4?

The daiji form of 4 is 肆. Daiji are elaborate kanji used on cheques, contracts, and official documents to stop anyone altering the simpler 四.

Related numbers

3

三

san

7

七

nana

9

九

kyū

40

四十

yon-jū

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