圓周率

(math.) the ratio of the circumference of a circle to its diameter (π)

circle / round / circular / spherical / (of the moon) full / unit of Chinese currency (yuan) / tactful / to make consistent and whole (the narrative of a dream or a lie)

circumference

surname Zhou / Zhou Dynasty (1046-256 BC)

to make a circuit / to circle / circle / circumference / lap / cycle / complete / all / all over / thorough / to help financially

week / weekly / variant of 周[zhou1]

rate / frequency

to lead / to command / rash / hasty / frank / straightforward / generally / usually