1. The ordinal number of forty in counting order
   - fortieth

See also: ordinal

• Aimee Semple McPherson
• aimer
• aimless
• aimlessly
• aimlessness
• ain
• ain't
• Ainu
• aioli
• aioli sauce
• air
• air alert
• air attaché
• air attack
• air bag
• air base
• air bed
• air bladder
• air bubble
• air castle
• air cell
• air cleaner
• Air Combat Command
• air compressor
• air conditioner