四

four / 4

variant of 人[ren2] / "person" radical in Chinese characters (Kangxi radical 10), occurring in 兒, 兀, 兄 etc

child / son

non-syllabic diminutive suffix / retroflex final

enclosure

dubious / shady / neither one thing nor the other / neither fish nor fowl / nondescript

all year round

seven heavenly bodies and four imaginary stars (in astrology and feng shui)

to coax and plead

Confucian moral injunctions for women, namely: obey in turn three men father, husband and son, plus the four virtues of morality 德[de2], physical charm 容, propriety in speech 言 and efficiency in needlework 功

friends / cronies

irregular quadrilateral / trapezium

forgetful / empty-headed

fried beans, Sichuan style

the Twenty-Four Histories (25 or 26 in modern editions), collection of books on Chinese dynastic history from 3000 BC till 17th century / fig. a long and complicated story

It's a long and intricate story, I hardly know where to start.