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.-to change; to transform; to invert.-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.-to change the natural order of, as words.-to change the key of.