trans ‧ pose /trænˈspəʊz $ -ˈspoʊz/ BrE AmE verb [transitive+ into/to] technical
[ Date: 1300-1400 ; Language: Old French ; Origin: transposer , from Latin transponere 'to change the position of' , from ponere 'to put' ]
1 . formal to change the order or position of two or more things
2 . to use a system or method in a different situation from the one you used it in originally
3 . to write or perform a piece of music in a musical ↑ key that is different from the one that it was first written in
—transposition /ˌtrænspəˈzɪʃ ə n/ noun [uncountable and countable]