Other Uses
- Grand Unified Theory, usually abbreviated as GUT, one of several unified field theories in physics
- Grand unification temperature, or grand unification energy, the temperature or energy at which the strengths of three fundamental forces (electromagnetism, strong and weak nuclear forces) converge
- Gut River, Jamaica
- Gut (ritual), Korean shamanistic rites
- Guts (film), a Spanish film, also known as Agallas
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