adverb, conjunction, punctuation · literary conjunction used to express contrast or consequence between clauses

美则美矣，但还不够完善。

measure word · measure word for short pieces of writing such as news, jokes, or fables

我今天在报上看到一则新闻。

noun · a standard, norm, or principle to follow

我们要以此为则，规范自己的日常行为。

conjunction · to imitate or take as a model

其言行足以则。