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
Example Sentences
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 Federal court records showed the suspect was convicted in 2018 of destroying a U.S. Postal Service mailbox in San Marcos. 
Alex Riggins, San Diego Union-Tribune, 23 Aug. 2022 Now, as an adult who works in D.C., Killough has grown used to opening her office mailbox and finding nothing for weeks. Theresa Vargas, Washington Post, 17 Aug. 2022 It was believed to have been involved in an earlier hit-skip mailbox incident. cleveland, 27 May 2022 The Retail, Wholesale and Department Store Union appealed that result, claiming a Postal Service mailbox at the warehouse cast a pall over voters. The Editorial Board, WSJ, 3 May 2022 In Bessemer, Amazon has made some changes to but still kept a controversial U.S. Postal Service mailbox that was key in the NLRB’s decision to invalidate last year’s vote. chicagotribune.com, 1 Apr. 2022 In Bessemer, Amazon has made some changes to but still kept a controversial U.S. Postal Service mailbox that was key in the NLRB’s decision to invalidate last year’s vote. Haleluya Hadero And Anne D'innocenzio, Anchorage Daily News, 1 Apr. 2022 Amazon has also made some changes too but still kept a controversial U.S. Postal Service mailbox that was key in the NLRB’s decision to invalidate last year’s vote. The Christian Science Monitor, 31 Mar. 2022 No one answered the phone number listed on Casa Ruby’s website, and the voice mailbox is full. Casey Parks, Washington Post, 17 July 2022 See More
Alex Riggins, San Diego Union-Tribune, 23 Aug. 2022 Now, as an adult who works in D.C., Killough has grown used to opening her office mailbox and finding nothing for weeks. Theresa Vargas, Washington Post, 17 Aug. 2022 It was believed to have been involved in an earlier hit-skip mailbox incident. cleveland, 27 May 2022 The Retail, Wholesale and Department Store Union appealed that result, claiming a Postal Service mailbox at the warehouse cast a pall over voters. The Editorial Board, WSJ, 3 May 2022 In Bessemer, Amazon has made some changes to but still kept a controversial U.S. Postal Service mailbox that was key in the NLRB’s decision to invalidate last year’s vote. chicagotribune.com, 1 Apr. 2022 In Bessemer, Amazon has made some changes to but still kept a controversial U.S. Postal Service mailbox that was key in the NLRB’s decision to invalidate last year’s vote. Haleluya Hadero And Anne D'innocenzio, Anchorage Daily News, 1 Apr. 2022 Amazon has also made some changes too but still kept a controversial U.S. Postal Service mailbox that was key in the NLRB’s decision to invalidate last year’s vote. The Christian Science Monitor, 31 Mar. 2022 No one answered the phone number listed on Casa Ruby’s website, and the voice mailbox is full. Casey Parks, Washington Post, 17 July 2022 See More Word History
First Known Use
1868, in the meaning defined at sense 1
Kids Definition
mailbox
noun
mail·box ˈmāl-ˌbäks
1
: a public box in which to place outgoing letters
2
: a private box (as on a house) for the delivery of incoming letters