世紀
せいき
seiki
JLPT N3nounVocabularyLevel 40 - JLPT N3

Quick answer

世紀 (せいき (seiki)) means "Century". It is read せいき (seiki). This page covers its usage with example sentences.

Meaning

Century

Also : Era

Learn 世紀 with SRS

Free to start — no credit card. Track every review with spaced repetition.

Start free

Example Sentences

20世紀は、科学が大きく進歩した時代だ。

20せいきは、かがくがおおきくしんぼしたじだいだ。

The 20th century was a time when science made great progress.

Kanji in this word

Grammar to study at this level

Last updated Jun 11, 2026

Learn 世紀 with Spaced Repetition

InitialJ uses scientifically proven SRS to help you memorize kanji and vocabulary for the JLPT. N5 is free forever; no credit card required.