Med. oculus dexter (Latin: right eye)
• Doctor of Optometry
• British vehicle registration for Exeter
• international civil aircraft marking for Lebanon
• officer of the day
• Old Dutch (language)
• Military olive drab
• operations division
• (Jamaica ) (Officer of the) Order of Distinction
• ordinary seaman
• Ordnance datum (standard sea level of the Ordnance Survey)
• ordnance department
• ordnance depot
• organization development
• other denominations
• outer (or outside) diameter
• (or o/d) overdose