“homophone (noun): Words having the same pronunciation but not the same origin, spelling or meaning, e.g., ‘peace’ and ‘piece.’ Adjective: homophonic, homophonous; adverb: homophonically; noun: homophony.
‘The coat of arms of the Shakespeare family, which shows its crest eagle shaking a spear, is a kind of pun weakened by etymology, but when Joyce calls Shakespeare—very justly—”Shapesphere” he has gone step further than homophony or homonymy. By changing two consonants he has interfered minimally with the shape of the name and enormously expanded its connotation.’ Anthony Burgess, Joysprick‘”
Excerpted from: Grambs, David. The Random House Dictionary for Writers and Readers. New York: Random House, 1990.