Histograms rhymes with:
diagrams, electrocardiograms, holograms, kilograms, logograms, milligrams, sonograms, telegrams, diagrams, electrocardiograms, holograms, kilograms, logograms, mailgrams, mammograms, micrograms, milligrams, polygram's, program's, programs, programs', reprograms, sonograms, telegrams