What is the meaning of ?

group, party

section

Nôm form of ban (well-developed).

branch of administration in the feudal court (of which there are two types: the civil administrators and the martial office holders)

group (of people doing the same work); band; board; squad; committee

shift; work period

time period; section of the day

(college-level) subject; (academic) department

Source: wiktionary.org