I recently disagreed with my sister about how many syllables are in the word “orange.” I said one, she said two, so I looked it up in the dictionary. At first I thought she was right, because the entry in bold was or·ange. However, I read the explanatory notes in the beginning of the dictionary, and they said that the entry word only shows how the word is hyphenated, not necessarily how many syllables are in it.
Then I looked at the pronunciation. There are six ways.
Pronunciation: \är-inj, är(-ə)nj; chiefly Northern & Midland ȯr-inj, ȯr(-ə)nj\
How are there six? Well, the (-ə) is pronounced by some people, but omitted by others. So the answer is orange can have one or two syllables. I pronounce it /ȯrnj/.