"Correspondence", the communication, usually written, between two or more people

Correspondence theory of truth, a theory in epistemology

"(regular) sound correspondence", a linguistics term (see Comparative method)

Correspondence principle in Physics, that theories must agree with experimental evidence.*

Correspondence chess played between different geographical locations

Correspondence (mathematics), several related meanings

Correspondence (theology), the relationship between spiritual and physical realities

Correspondence rules in quantum mechanics

Correspondence (computer vision), finding depth information in stereography (see Correspondence problem)