Standard Lemma guide

mailbox

noun · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈmeɪl.bɑks/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: M EY1 L B AA2 K S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A box into which mail is placed.

A collection point for mail intended for onward delivery, a secure box or receptacle for this purpose.

Definition source: English Wiktionary via Wiktextract

Usage: US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: letterbox, USPS blue box, blue box, collection box

Antonyms: none provided

2

noun

Meaning 2

A box into which mail is placed.

A delivery point for mail, a box, compartment or slot for this purpose.

Definition source: English Wiktionary via Wiktextract

Usage: US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: letterbox

Antonyms: none provided

3

noun

Meaning 3

A folder or account for the storage of email; an electronic inbox or mailstore.

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

a private box for delivery of mail

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: letter box

Antonyms: none provided

Broader terms: box

5

noun

Meaning 5

public box for deposit of mail

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: postbox, letter box

Antonyms: none provided

Broader terms: maildrop

Narrower terms: pillar box

History

Etymology

From mail + box.

Real reading context

mailbox in complete knowledge articles