aurochs /öˈ or owˈroks/

1. The urus or wild ox (extinct 1627)
2. The European bison (obsolete; non-standard)

• umbellule
• umbellules
• umbels
• umber
• umber-bird
• umber-birds
• umbered
• umbering
• umbers
• umbery
• umbilical
• umbilical cord
• umbilical cords
• umbilicate
• umbilication
• umbilications
• umbilici
• umbilicus
• umbilicuses
• trust accounts
• trustafarian
• trustafarians
• trustbuster
• trustbusters
• trust companies