Wine Terms beginning with 'O'
- O2
- Oak
- Oak Barrel Substitutes
- Oak Chips
- Oak Powder
- Oak Staves
- Oaked
- Oaked Chardonnay
- Oaky
- Oechsle
- Oenologist
- Oenology
- Oenophile
- Off-Dry
- Official Bordeaux Wine Classification of 1855
- Old Vine
- Old Vines
- Old World
- Olfactory Epithelium
- Oloroso
- Onomasia Proelefsis Anoteras Poiotitos
- Organic Wine
- Organoleptic
- Orientation
- Ortega
- Ortswein
- Orvieto
- Over-Thin
- Overwinter
- Own-Rooted Vine
- Oxidation
- Oxidative Aging
- Oxygen (O2)