Special words
It refers to local dialect.
Idioms and allusions
[source] on the unification of Chinese characters written by Zhang Taiyan in Qing Dynasty: "although today's phonology is the same, but different words are still preserved."
Discrimination of words
[usage] used as subject, object and attribute; refers to dialect
Special words
there is an azure sky above the blue sea - bì hǎi qīng tiān
people starved to death are everywhere - è piǎo mǎn dào
mountains fall and the earth splits - shān bēng dì chè
take up and adopt others ' thoughts instead of using one 's own - shí rén yá huì