noun, noun which may take the genitive case particle 'no'
usual state of things; ordinary course; way things normally are
A noun and の-adjectival use for what is normal, usual, or the expected course of things. Often appears in set phrases such as 世の常, meaning 'the way of the world.'
人の心が変わるのは世の常だ。
It is the way of the world for people's feelings to change.
これを常のこととして受け止めてはいけない。
You must not accept this as the normal state of affairs.
A common adverb meaning 'always' or 'usually'; 常 is a noun-like word for the normal state or ordinary course of things.
Means 'normal' or 'ordinary' in broad everyday use; 常 sounds more fixed or set-phrase-like when referring to the way things generally are.
A more formal noun meaning constancy or a steady state; it is closer to the idea represented by the rare spelling 恒.
つね is a native Japanese word conventionally written with 常 for normality or constancy. The alternative 恒 also conveys constancy, but its standalone use for つね is uncommon; the precise historical development is not specified.