1. The ordinal number of fifty-five in counting order
   - 55th

See also: ordinal

• Aulostomus
• Aulostomus maculatus
• Aum
• Aum Shinrikyo
• aunt
• Aunt Sally
• auntie
• aunty
• aura
• aural
• aurally
• aureate
• Aurelius
• Aureolaria
• Aureolaria pedicularia
• Aureolaria virginica
• aureole
• Aureomycin
• auric
• auricle
• auricula
• auricula atrii
• auricular
• auricular appendage
• auricular appendix