1. The cardinal number that is the sum of five and one
   - six, 6, VI, sixer, sise, Captain Hicks, sextet, sestet, sextuplet, hexad

Type of: digit, figure

• genus Alectoris
• genus Alectura
• genus Alepisaurus
• genus Aletris
• genus Aleurites
• genus Aleyrodes
• genus Algeripithecus
• genus Alisma
• genus Allamanda
• genus Alliaria
• genus Alligator
• genus Allionia
• genus Allium
• genus Allosaurus
• genus Alnus
• genus Alocasia
• genus Aloe
• genus Alopecurus
• genus Alopex
• genus Alopius
• genus Alosa
• genus Alouatta
• genus Alpinia
• genus Alsobia
• genus Alsophila