1. Travelling on horseback
   - ahorseback

1. On the back of a horse
   "managed to escape ahorse"
   - horseback, ahorseback

See also: moving

• odynophagia
• Odysseus
• odyssey
• Oecanthus
• Oecanthus fultoni
• OECD
• oecumenic
• oecumenical
• oecumenism
• OED
• oedema
• Oedipal
• Oedipal complex
• Oedipus
• Oedipus complex
• Oedipus Rex
• Oedogoniaceae
• Oedogoniales
• Oedogonium
• oeil de boeuf
• OEM
• Oenanthe
• Oenanthe aquatica
• Oenanthe crocata
• Oengus