Polygraphs rhymes with:
allographs, autographs, intergraph's, lithographs, paragraphs, phonographs, photographs, telegraph's, allographs, autographs, intergraph's, lithographs, paragraphs, phonographs, photographs, telegraph's
allographs, autographs, intergraph's, lithographs, paragraphs, phonographs, photographs, telegraph's, allographs, autographs, intergraph's, lithographs, paragraphs, phonographs, photographs, telegraph's