1
: robot
The competition pits remote-controlled, spinning, stabbing robots against each other in three-minute jousts to the death. At the end of each fight, either one of the bots is a smoking, immobile wreck or the judges decide who scored the most blows.—Brad Stone
2
a
: a computer program that performs automatic repetitive tasks : agent sense 5
Several shopping "bots" will track down prices for on-line merchandise from a variety of vendors.—Sam Vincent Meddis
especially : one designed to perform a malicious action
These bot programs churn away all day and night, prodding at millions of random IP addresses looking for holes to crawl through. —Jennifer Tanaka
b
: a computer that has been infected with a bot and can be used for malicious purposes as part of a network of infected computers
These proxies then sent instructions to worker bots in set patterns, including templates for spam creation.—Jeff Hecht
3
: a computer program or character (as in a game) designed to mimic the actions of a person

bot

2 of 3

noun (2)

variants or less commonly bott
: the larva of a botfly
especially : one infesting the horse

bot

3 of 3

abbreviation

1
botanical; botanist; botany
2
bottle
3
bottom
4
bought

Examples of bot in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Once inside, the wiggly worm-bot can snap photos, administer drugs, and even take small biopsy samples. — Mack Degeurin, Popular Science, 29 Oct. 2026 Within two days, Flowers recalled, Jain and Ketkar had loaded the reminder bot with her scripts. — Nick Lichtenberg, Fortune, 28 Oct. 2026 Kahan, who’s set to go on tour in 2027, used an identity check software on Ticketmaster in an attempt to stop bots from buying up tickets for his 2026 stadium shows. — Joseph Hernandez, Kansas City Star, 28 Oct. 2026 Vision and the bots observe from just outside these conversations in full color. — Tasha Robinson, Vulture, 28 Oct. 2026 See All Example Sentences for bot

Word History

Etymology

Noun (1)

by shortening

Noun (2)

Middle English; akin to Dutch leverbot liver fluke

First Known Use

Noun (1)

1969, in the meaning defined at sense 1

Noun (2)

15th century, in the meaning defined above

Time Traveler
The first known use of bot was in the 15th century

Browse Nearby Words

Cite this Entry

“Bot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bot. Accessed 2 Nov. 2026.

Kids Definition

: the larva of a botfly

bot

2 of 2 noun
1
: robot
2
: a computer program that performs automatic, repetitive, and sometimes harmful tasks
3
: a computer program or character that mimics human actions

Medical Definition

bot

1 of 2 noun
: the larva of a botfly
especially : one infesting the horse

bot

2 of 2 abbreviation
1
botanical; botanist; botany
2
bottle

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