GUTS

n. courage, energy, determination; intestines

n. intestines, alimentary canal; bowels, entrails; inner parts, contents of anything; sinew (used for violin strings, tennis rackets, etc.)

v. disembowel, eviscerate; remove the internal contents of; destroy the inside of

Guts has a number of meanings, both as a regular word and as an acronym:VernacularGuts, a common term for the gastrointestinal tract, especially the intestines (by contrast, the singular "gut" usually refers to the stomach or more commonly to the fleshy and fatty belly that covers the lower abdomen).Guts, a colloquialism for courage or (less approvingly) for chutzpah, as in "that took a lot of guts"; adjective form "gutsy", as in "that was a gutsy move"To "spill one's guts", a slang phrase meaning "to reveal information best kept to oneself, such as under interrogation or threat or for monetary reward; to snitch"
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Grand Unification, grand unified theory, or GUT is one of several very similar unified field theories or models in physics that unify what are considered three "fundamental" gauge symmetries: hypercharge, the weak force, and quantum chromodynamics (QCD). Grand unification is based on the idea that at extremely high energies, all symmetries have the same gauge coupling strength, which is consistent with the speculation that they are really different manifestations of a single overarching gauge symmetry. More specifically, GUTs predict that at energies above GeV, the electromagnetic, weak nuclear, and strong nuclear forces are fused into a single unified field. (Parker, B 1993, 'Overcoming some of the problems', pp.259-279)
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GUTS is a 30-minute "action-sports" game show that aired for four seasons on Nickelodeon from 1992 to 1995. Mike O'Malley presided as host; Moira Quirk (often called Mo) was the referee.The show was taped in Universal Studios Florida on Soundstage 21 which was not part of the Nickelodeon Studios Complex, but was rented by them.
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Noun
1. fortitude and determination; "he didn't have the guts to try it"
(synonym) backbone, grit, moxie, sand, gumption
(hypernym) fortitude
(classification) colloquialism

Noun
1. the part of the alimentary canal between the stomach and the anus
(synonym) intestine, bowel
(hypernym) internal organ, viscus
(hyponym) small intestine
(part-holonym) abdomen, venter, stomach, belly
(part-meronym) hindgut
2. a strong cord made from the intestines of sheep and used in surgery
(synonym) catgut
(hypernym) cord
(substance-holonym) suture
Verb
1. empty completely; destroy the inside of; "Gut the building"
(hypernym) empty
(derivation) gutter
2. remove the guts of; "gut the sheep"
(hypernym) remove, take, take away, withdraw
(derivation) catgut

n. blessing, fortune, grace; property, possessions, belongings, estate, assets, ownership; merchandise, goods

n. guts, courage; gush, sudden flow; gouge, type of chisel

v. gush, burst forth; gouge, cut with a chisel; rain heavily, pour