Definition

Noun: A numeric or alphanumeric identifier assigned to a specific postal box (a locked compartment) within a post office, where mail is held for collection by the recipient.

Usage

A PO Box number is used as part of a mailing address to receive mail privately or securely at a post office location instead of at a residential or business street address.

Examples

• Please send the package to PO Box Number 456.
• The invoice should be mailed to our PO Box number.
• Her address on file is PO Box Number 789, Anytown, WA 98001.

Advanced Usage

• "Care of" a PO Box: Used when mail is to be delivered to a PO Box but addressed to an individual or entity using that box.
  • Send the letter to Jane Doe, c/o PO Box Number 123.
• In formal addressing, "PO Box" is often written with the number directly following, without the word "number".
  • The correct format is PO Box 456, not PO Box Number 456.

Variants and Related Words

• PO Box (noun): The full term for the postal box itself and the addressing method. The number is a component of this.
  • We rent a PO Box at the local post office.
• Post Office Box (noun): The formal, unabbreviated term.
• Lockbox (noun): A similar secured box for receiving mail or documents, often provided by private services.

Synonyms

• Mailing box number
• Postal box identifier

Related Phrases

• PO Box address: The complete mailing address that includes the PO Box number, city, state, and ZIP code.
  • Please provide your full PO Box address.

Noun

1. the number of a letter box at the post office where mail is collected