[ C/U ] a city or town that has a harbor (= sheltered area of water where ships can load or unload) on the sea or a river, or the harbor itself:

[ C ] technology a part of a computer where wires can be connected in order to control other pieces of equipment, such as a printer

[ U ] the left side of a ship or aircraft as you are facing forward

[ C or U ] TRANSPORT an area of water and the land and buildings surrounding it, where ships can take on and off goods and passengers:

[ C ] TRANSPORT a town that has such an area:

[ C ] IT a part of a computer where you can connect another piece of equipment, such as a printer or screen:

IT, COMMUNICATIONS to move software, a phone number, etc. to another system, without it being changed: