This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

一世

Reading

Kana: いっせい
Romaji: issei
Kana
Romaji

Definitions

1

generation; lifetime

2

the age; the day

3

the First

Note: after the name of a king, etc.
4

issei; first-generation Japanese (or Korean, etc.)

Kanji

Readings: イチ、 イツ、 ひと-、 ひと.つ
Meanings: one, one radical (no.1)
Readings: セイ、 セ、 ソウ、 よ、 さんじゅう
Meanings: generation, world, society, public

Example Sentences

世紀(せいき)は100(ねん)です。
➥A century is one hundred years.
Full Entry➤
(かれ)(ほぞ)(かた)めて一世一代(いっせいちだい)(だい)事業(じぎょう)()()した。
➥He resolved to embark on a once-in-a-lifetime enterprise.
Full Entry➤
一世一代(いっせいちだい)()れの舞台(ぶたい)という(いまわ)()しがあるが、これはまさにそれである。
➥There's a saying, "once in a life-time event," and that's just what this is.
Full Entry➤
(ひゃく)(ねん)(いち)世紀(せいき)()ばれる。
➥A hundred years is called a century.
Full Entry➤
(いち)世紀(せいき)(はん)混乱(こんらん)(つづ)いた(のち)に、やっと国王(こくおう)権威(けんい)回復(かいふく)された。
➥Only after a century and a half of confusion was the royal authority restored.
Full Entry➤
1603(ねん)、ジェームズ一世(いっせい)政権(せいけん)()についたとき、フットボールは(ふたた)許可(きょか)されたのです。
➥In 1603, when King James I came into power, football was allowed again.
Full Entry➤
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