培 means “cultivate, foster”

ばい · bai

Kun'yomi (Japanese reading)
つちかう
On'yomi (Chinese reading)
バイ

JLPT N1 · Taught in secondary school · 11 strokes

The story

Earth (土) beside 咅: picture soil heaped around a seedling's roots so it stands firm. 培う is to cultivate, skills and character as well as crops, 栽培 is growing plants, and 培養 is growing cells in a lab.

Used in 栽培 (saibai, cultivation), 培う (tsuchikau, to cultivate/foster), and 培養 (baiyou, culture, in biology)

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