What is the meaning of ?

to rub off, to rub out

flag, banner

chess

period, term (recurring interval of time)

until; till

strange; odd

awkward or tacky

a capital city or citadel

an area of land equal to 1,000 dặm (miles or leagues)

a border

”, in Từ điển Hán Nôm [Sino-Vietnamese Dictionary], section Từ điển trích dẫn [Dictionary of Example Usage]

Source: wiktionary.org