1. For the most part
   - principally, primarily, mainly, in the main, majorly

See also: chief

• genus Alces
• genus Aldrovanda
• genus Alectis
• genus Alectoria
• 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