恒

音読おんよみ: コウ

訓読くんよみ: つね

画数かくすう: 9

部首ぶしゅ: りっしんべん（心）

Meaning

Constant / regular / everlasting.

  • 恒例こうれい — established custom; annual event
  • 恒常的こうじょうてき — constant; continuous; steady
  • 恒久こうきゅう — permanence; lasting
  • 恒温こうおん — constant temperature
  • 恒心こうしん — steadfast heart

The radical りっしんべん (heart) combines with the element 亘 (extend / span). Together, they suggest a heart or spirit that continues unchanged across time — expressing constancy, steadiness, and everlasting nature.

常

Think of 常, which means the usual or everyday. 恒 takes that idea further — showing something steady, regular, and unchanging. That’s why we use 恒常的 to describe what is constant and continuous. 常 covers the ordinary routine, while 恒 points to what endures over time.

例
Creates

恒例こうれい — an established custom; a regular practice.

◀︎ Sayings+ ▶︎