Bucephalus /bū-sefˈə-ləs/

1. Alexander the Great's famous warhorse
2. Any horse (familiar or facetious)

• arnicas
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• arnut
• A-road
• aroba
• a rod in pickle
• aroid
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• aroint
• arointed
• arointing
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• aroint thee
• a Roland for an Oliver
• arolla
• arollas
• a rolling stone gathers no moss
• aroma
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• aromatase
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• aromatherapist
• aromatherapists