Duties
Import or customs fees.
if your talking about u.s.a studies weekly it is customs
british
Proprietary government failed because the proprietors failed to live up to their responsibilities,supplies were not sent,taxes were not collected, the port was in disrepair and tyhe governers were often incompetent and corrupt.
They vary from port to port.
Aport is called a port because you put stuff in a port just like boats.
One-liter of alcohol per person may be brought into the US from Canada, duty-free. Additional quantities may be brought in, but they will be subject to duty and Federal excise taxes, which will be assessed and collected at the port of entry.
Free port
A port hole ?
A sheltered port is a harbor.
A com port can also be called a serial port.
Normally called the serial port, but could also be called UART or RS-232