Transposition

Transposition may mean:
* Transposition (cardiac), a congenital heart defect with malformation of any of the major vessels.
* Transposition (chess), different moves or a different move order leading to the same position, especially during the openings.
* Transposition (cryptography), an elementary cryptographic operation
* Transposition (genetics), a mutation in which a chromosomal segment is transferred to a new position on the same or another chromosome
* Transposition (law), the incorporation of the provisions of a European Union directive into a Member State's domestic law.
* Transposition (logic), a rule of replacement in philosophical logic
* Transposition (mathematics), a permutation which exchanges two elements and keeps all others fixed
* Transposition (music), moving a note or collection of notes up or down in pitch by a constant number of semitones.
* Transpose of a matrix "A"^T, which is computed by swapping columns for rows in the matrix "A".
* Transposition table, used in computer games to speed up the search of the game tree
* Transposition (telecommunications)
* Transposition, docking, and extraction an orbital maneuver performed on the Apollo lunar missions