Webster's Revised Unabridged Dictionary · 1913

Transpose

Transpose , transitive verb

[French transposer; pref. trans- (Latin trans across) + poser to put. See Pose.]

1.
To change the place or order of; to substitute one for the other of; to exchange, in respect of position; as, to transpose letters, words, or propositions.
2.
To change; to transform; to invert. [Rare]
Things base and vile, holding no quantity, Love can transpose to form and dignity. — Shakespeare
3.
(Algebra) To bring, as any term of an equation, from one side over to the other, without destroying the equation; thus, if a + b = c, and we make a = c - b, then b is said to be transposed.
4.
(Grammar) To change the natural order of, as words.
5.
(Music) To change the key of.