The correct spelling of the word "Robert Geranium" is /ˈrɒbərt dʒəˈreɪniəm/ according to the International Phonetic Alphabet. The first syllable, "Rob-," is pronounced with the "o" sound as in "hot." The second syllable, "-ert," is pronounced with the "er" sound as in "her." The third syllable, "Ge-," is pronounced with a soft "g" sound as in "gentle." The final syllable, "-ranium," is pronounced with the stress on the second syllable and a long "a" sound as in "ray."