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

Calls to the Winter Park office were unsuccessful and the league's mailbox was full. — Joe Kinsey Outkick, FOXNews.com, 26 Oct. 2026

Meanwhile, the anti-40 and pro-42 campaigns are inundating voters on television, streaming services, in mailboxes, through online influencers and even in digital video games such as Sim City. — Seema Mehta, Los Angeles Times, 24 Oct. 2026

The flyers began showing up in mailboxes across the state as early voting got underway for the midterm elections. — Kelsy Mittauer, CBS News, 22 Oct. 2026

Instead, their mailbox was brimming with envelopes — more than 500 of them, each a vote that wouldn’t count. — Ken B. Morales, ProPublica, 22 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