English version

box number in Mail topic

From Longman Dictionary of Contemporary Englishbox numberˈbox ˌnumber noun [countable]  TCMan address at the post office that people can have their letters etc sent to instead of their own addressPO Box
Examples from the Corpus
box numberEach one was labelled with a box number and contained a large brown envelope.You have to get letter heads printed, make it look good, have a fake box number.I never wrote to that box number.I wrote that night to the box number.So she wrote to the box number and suggested a date for a preliminary viewing to avoid disappointment or misunderstandings.