gut

1 of 4

noun

ˈgət 

1

a

: bowels, entrails

—usually used in plural

fish guts

b

: digestive tract

also : part of the digestive tract and especially the intestine or stomach

c

: belly, abdomen

d

: catgut

2

guts plural : the inner essential parts

the guts of a car

3

guts plural : fortitude and stamina in coping with what alarms, repels, or discourages : courage, pluck

had the guts to run for public office

4

: the basic visceral, emotional, or instinctual part of a person

She knew in her gut that he was lying.

Consult more than one financial adviser before making a final choice, and trust your gut.

—Quentin Fottrell

My gut says this is, overall, a terrible idea.

—Erica Buist

—often used before another noun

making a gut decision

a gut feeling

"Tony's a very driven guy, and he makes a lot of decisions based on gut instinct," …

—Tom Nides

5

: a narrow passage

also : a narrow waterway or small creek

6

: the sac of silk taken from a silkworm ready to spin its cocoon and drawn out into a thread for use as a snell

7

: gut course

gut

2 of 4

adjective

1

: arising from one's inmost self : visceral

a gut reaction

2

: having strong impact or immediate relevance

gut issues

gut

3 of 4

verb

gutted; gutting

transitive verb

1

a

: eviscerate

b

: to extract all the essential passages or portions from

2

a

: to destroy the inside of

fire gutted the building

b

: to destroy the essential power or effectiveness of

inflation gutting the economy

GUT

4 of 4

abbreviation

grand unified theory; grand unification theory

Phrases

gut it out

: persevere

Synonyms

Noun

• inside(s)
• viscera
• entrails

Verb

• clean

Examples of gut in a Sentence

Noun

the guts of the fish

the guts of a machine

the guts of a business deal

That decision took a lot of guts.

I didn't have the guts to do it.

Verb

The salmon is already gutted and filleted.

Critics claim that these reforms will gut the law.

Recent Examples on the Web

Noun

Now cancer-free, Menounos credits her outcome to trusting her gut and pushing for more tests. —Anna Halkidis, Parents, 25 Oct. 2025

Plus, dates are rich in fiber, which boosts gut health and slows down the absorption of sugar in the body, said Rabia De Latour, MD, a gastroenterologist and assistant professor in the Department of Medicine at NYU Grossman School of Medicine. —Maggie O'Neill, Verywell Health, 24 Oct. 2025

Adjective

Now, in a new review article, researchers at the University of Hawai’i at Mānoa (UH Mānoa) have investigated how gut bacteria can affect our epigenome – the chemical tags on DNA and RNA that turn genes on or off without altering the underlying genetic code. —New Atlas, 24 Sep. 2025

This shows that the gut allergic pathway is different from the whole-body allergic pathway and has its own chemical drivers, according to the researchers. —Hannah Millington, MSNBC Newsweek, 28 Aug. 2025

Verb

Something approaching ecological grief now surfaced in his work, a sense that Big Sky Country’s outdoor life—and with it, the folkways of people who beat the sun to rising and who know how to shoe a horse and gut and pack out an elk—was becoming gradually impossible, or at least unappreciated. —Tyler Austin Harper, The Atlantic, 30 Oct. 2025

At the same time, the administration is trying to use a new round of layoffs to gut multiple offices inside the department, including the Office for Civil Rights and the office responsible for overseeing special education, according to multiple sources within the department. —The Npr Network, NPR, 30 Oct. 2025

Word History

Etymology

Noun, Adjective, and Verb

Middle English, from Old English guttas, plural; probably akin to Old English gēotan to pour

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a(1)

Adjective

1964, in the meaning defined at sense 1

Verb

14th century, in the meaning defined at sense 1a

Phrases Containing gut

• beer gut
• blind gut
• bust a/one's gut
• gut check
• gut course
• gut it out
• gut-wrenching

Rhymes for gut

• but
• butt
• cut
• glut
• hut
• jut
• mutt
• nut
• putt
• rut
• shut
• smut

Kids Definition

gut

1 of 2 noun

ˈgət 

1

a

: entrails, viscera

—usually used in plural

b

: the alimentary canal or part of it (as the intestine or stomach)

c

: abdomen sense 1, belly

2

plural : the inner essential parts

3

plural : courage

gut

2 of 2 verb

gutted; gutting

1

: to remove the entrails from

scale and gut a fish

2

: to destroy the inside of

fire gutted the building

Medical Definition

gut

1 of 2 noun

ˈgət 

1

a

: digestive tract

also : part of the digestive tract and especially the intestine or stomach

the mix of bacteria making up the flora of the gut

—W. E. Leary

b

: abdomen sense 1a, belly

—usually used in plural

—not often in formal use

his huge gut hung far below his belt

—L. M. Uris

2

: catgut

gut

2 of 2 transitive verb

gutted; gutting

: to take out the bowels of : eviscerate