# mailbox

/ˈmeɪɫˌbɑks/ (US) · /mˈeɪlbɒks/ (UK) · CEFR A2 · Noun

Source: https://englishreference.com/word/mailbox
Updated: 2026-05-06

## Definition

a box where your letters are delivered, or a digital folder where your emails arrive.

For teachers: a physical container for incoming postal mail or a digital storage location for electronic messages.

## Examples

- I check my mailbox every morning for new letters.
- The system administrator warned that my digital mailbox was nearly full and I needed to delete old attachments.
- While physical mailboxes are becoming less central to daily communication, the digital equivalent remains the primary hub for professional correspondence and official notifications.

## Usage notes

- In computing contexts, often refers specifically to the storage allocated to a single user on a mail server.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.