Word of the day, Upended Our word of the day from The Arbiter is Upended Meaning Upended is the past tense and past participle of the verb upend. It means to turn something upside down or on its end, to disrupt or overturn something, especially an established situation or system. Synonyms - Flipped - Tipped over - Reversed Pronunciation uhp-ENDid Example A few weeks ago, a friend got upended over an issue. Share with us a sentence with the word Upended; let's see how well you understand it.