Transposition is the act of switching or interchanging two things. It is a term used in mathematics, music, and cryptography. In mathematics, transposition involves rearranging the order of elements in a matrix or vector. In music, transposition is the process of changing the key of a piece of music. In cryptography, transposition is the process of rearranging the order of letters in a message to create a coded version. The crossword solutions for the term transposition are 'SWITCH' (6 letters) and 'INTERCHANGE' (11 letters).