the Wei state during the Three Kingdoms period (220-265), established by Cao Pi, son of Cao Cao; it is called Cao Wei to distinguish it from the Northern Wei founded by the Tuoba family

refers collectively to the Odes of Cao (曹风 cáo​fēng) and the Odes of Wei from the 诗经 shī​jīng

the surnames of the ruling families of the Cao Wei and (Eastern) Wei dynasties, or more generally referring to these historical periods