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box number

box number

1 3.0
A number for a mailbox at a post office where someone receives mail
  • noun
translation icon : número de apartado
  • I received a letter addressed to my box number at the post office, which is how I get my important correspondence.
  • post office box number
  • office box number

Examples

Synonyms

post-office box number
vsbox number
1 2.1

A number used to receive mail at a post office box

is the simpler, shorter everyday term rather than the formal hyphenated form
PO box number
vsbox number
2.7

A number for a box at the post office where you receive mail

is the broader, everyday form used as a simple mailing address
PO Box No
vsbox number
3.5

A number for a post office box where you collect mail

is the nonabbreviated everyday phrase rather than an abbreviated label

Surface Forms

box number singular
box numbers plural

Morphology

box + number

The meaning 'a number assigned to a mailbox' is directly and transparently derivable from combining 'box' (a container or mailbox) with 'number' (a numeric identifier). This simple noun+noun compositional pattern is common in English and other languages, so a B1 learner who knows both words should understand the phrase.

Etymology

Box number comes from the small, numbered boxes people rent at a 'post office'. Each person's 'mail' goes into their numbered box, so the phrase now means the 'number' used as a 'mail' address.