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