mailbox

noun

mail·​box ˈmāl-ˌbäks 

1

: a box at or near a dwelling for the occupant's mail

2

: a public box for deposit of outgoing mail

3

: a computer file in which email is collected

Examples of mailbox in a Sentence

On the way to work, I dropped my letters in the corner mailbox.

She checked her mailbox daily, hoping for a letter from her son.

Recent Examples on the Web

Such a note would be handed to the next person travelling to a city, who would deposit it in a mailbox outside the radio station. — Jordan Salama, New Yorker, 12 Oct. 2026

So, if a breach letter from the Pentagon shows up in your mailbox, don't toss it aside. — Kurt Knutsson, FOXNews.com, 12 Oct. 2026

The mailers are sponsored by Enough Promises Ohio PAC and began arriving in voters’ mailboxes in recent days. — Julie Carr Smyth, Los Angeles Times, 12 Oct. 2026

The presidential visit came after mailers, sponsored by Enough Promises Ohio PAC, began arriving in voters’ mailboxes in recent days. — ABC News, 12 Oct. 2026

Word History

First Known Use

1868, in the meaning defined at sense 1

Rhymes for mailbox

• botox
• checkbox
• comox
• cornstalks
• cowpox
• crosswalks
• deadlocks
• detox
• feedstocks
• gearbox
• hemlocks
• icebox

Kids Definition

mailbox

noun

mail·​box ˈmā(ə)l-ˌbäks 

1

: a public box in which to place outgoing mail

2

: a private box (as on a house) for the delivery of incoming mail

3

: a computer file in which email is collected