Box number and Mailing address

Box number noun - The number of a letter box at the post office where mail is collected.

Mailing address and box number are semantically related. In some cases you can use "Mailing address" instead a noun phrase "Box number".

Mailing address noun - The address where a person or organization can be communicated with.

Box number and mailing address are semantically related. Sometimes you can replace phrase "Box number" with "Mailing address", this phrases are similar.