誕 means “birth”

たん · tan

Also: nativity, be born, declension, lie

On'yomi (Chinese reading)
タン

JLPT N1 · Taught in grade 6 · 15 strokes

The story

Words (言) stretched long (延): the Shuowen dictionary says 誕 once meant tall talk, but today it means birth. 誕生日 is a birthday, and museums mark a great artist's 生誕百年, a hundred years since birth.

Used in 誕生日 (tanjoubi, birthday), 誕生 (tanjou, birth), and 生誕 (seitan, birth, in anniversaries)

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.