１いち万まん

い

ち

ま

ん

Meanings

1

10,000; ten thousand

The basic Japanese numeral for ten thousand; used in counting, prices, and quantities.

このパソコンは１いち万まん円えんです。
This computer is 10,000 yen.
会かい場じょうには１いち万まん人にんが集あつまった。
Ten thousand people gathered at the venue.

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Kanji

万ten thousand, 10,000
一one, one radical (no.1)

Related words

千せんN5
千 means 1,000, one order of magnitude smaller than １万, which means 10,000.
十じゅう万まん
十万 means 100,000, one order of magnitude larger than １万, which means 10,000.

Don't confuse with

一いち億おくN5
一万 is 10,000, while 一億 is 100,000,000 — learners sometimes mix up the scale between the two large-number terms.

Written forms

１いち万まん
Standard modern numeral-kanji spelling; very common in everyday writing.
一いち万まん
Full kanji spelling; common in formal or vertical writing.
１００００いちまん
All-numeral spelling; used in contexts like prices or statistics.
一〇〇〇〇いちまん
Kanji-zero spelling; rarely used, mainly in vertical or formal documents.

Etymology

Compound of 一 (いち, 'one') and 万 (まん, 'ten thousand'). The reading いちまん is regular.