Refinement may refer to:
Mathematics
- Equilibrium refinement, the identification of actualized equilibria in game theory
- Refinement of an equivalence relation, in mathematics
- Refinement (topology), the refinement of an open cover in mathematical topology
- Refinement (category theory)
Other uses
- Refinement (computing), computer science approaches for designing correct computer programs and enabling their formal verification
- Refining, a process of purification
- Refinement (culture), a quality of cultural sophistication
- Refinement (horse), a racehorse ridden by jockey Tony McCoy
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