1. The ordinal number of five hundred in counting order
   - five-hundredth

See also: ordinal

• Aeonium haworthii
• Aepyceros
• Aepyceros melampus
• Aepyornidae
• Aepyorniformes
• aepyornis
• AER
• aerate
• aerated
• aeration
• aerator
• aerenchyma
• aerial
• aerial ladder
• aerial ladder truck
• aerial torpedo
• aerial tramway
• aerialist
• aerially
• aerides
• aerie
• aeriferous
• aeriform
• aerify
• aero-