dunno /də-nōˈ/ informal contraction of (I) don't know

• UPVC
• uPVC
• upwaft
• upwafted
• upwafting
• upwafts
• upward
• upwardly
• upwardly mobile
• upward mobility
• upwardness
• upwardnesses
• upward of
• upwards
• upwards of
• upwell
• upwelled
• upwelling
• upwellings
• upwells
• upwent
• upwhirl
• upwhirled
• upwhirling
• upwhirls