Correspondence may refer to:
In general usage, non-concurrent, remote communication between people, including letters, email, newsgroups, Internet forums, blogs.
Science Correspondence principle (physics): quantum physics theories must agree with classical physics theories when applied to large quantum numbers Correspondence principle (sociology), the relationship between social class and available education Correspondence problem (computer vision), finding depth information in stereography Regular sound correspondence (linguistics), see Comparative method (linguistics)
Mathematics Binary relation Mathematical correspondence, a more general term than bijection Set-valued function, for a correspondence as a function representing a set. Correspondence (algebraic geometry), between two algebraic varieties Corresponding sides and corresponding angles, between two polygons Correspondence (category theory), the opposite of a profunctor Correspondence (von Neumann algebra) or bimodule, a type of Hilbert space Correspondence analysis, a multivariate statistical technique
Philosophy and religion Correspondence theory of truth, a theory in epistemology Correspondence (theology), the relationship between spiritual and physical realities Table of magical correspondences, list of relations between various items used in ceremonial magic
Entertainment Correspondence chess played between different geographical locations Correspondence (album), a 1983 studio album by singer and musician Peter Godwin The Correspondence, a 2016 film by Giuseppe Tornatore, featuring Jeremy Irons Correspondences (Babbitt), a 1967 musical work by Milton Babbitt
Other uses Correspondence course, a distant education method
See also Correspondent (disambiguation) La Correspondencia (disambiguation)