Jōyō kanji, Taught in junior high
JLPT level: N1
1314 of 2500 most used kanji in newspapers
Stroke count: 9
Meaning: constancy, always
Kunyomi: つね つねに
Onyomi: コウ
Composition: 忄 亘
Radical: 心
Meaning: heart
恒常 （コウジョウ） constancy, permanence
恒久 （コウキュウ） permanence, perpetuity
常 （つね） usual state of things