+A [Vacuum](/wiki/vacuum) is a region of [Space](/wiki/space) devoid of matter. It represents an absence of particles, where [Pressure](/wiki/pressure) is substantially lower than its surroundings, a state crucial for various scientific and technological applications.
+## See also
+- [Fluid](/wiki/fluid)
+- [Energy](/wiki/energy)
+- [Quantum Field](/wiki/quantum_field)