hiệu kỳ 
school flag [ hiệu ] : store, shop; sign, signal, mark, brand, trademark
[ kỳ ] : (1) term, period, session; issue, number (of a periodical); (2) strange, odd, eccentric; (3) until; (4) chess; (5) flag; (6) to request, hope for; (7) to rub
Most Common Compounds Set 1:
Most Common Compounds Set 2 :