The spelling of the word "oscitancies," which means the act of yawning, can be a bit tricky. The first syllable is pronounced "ahs" like in "boss," the "ci" is pronounced like "sh" as in "ocean," and the last three syllables are pronounced "tuhn-seez" like in "fantasies." So, the IPA phonetic transcription of this word is /ˌɑsɪˈtænsiz/. This complex spelling may contribute to the rarity of use of the word in everyday English conversations.