1. Capable of fathering offspring

See also: male

• idiosyncrasy
• idiosyncratic
• idiot
• idiot board
• idiot box
• idiot light
• idiot savant
• idiotic
• idiotically
• idiotism
• Iditarod
• Iditarod Trail
• Iditarod Trail Dog Sled Race
• idle
• idle pulley
• idle talk
• idle wheel
• idle words
• idleness
• idler
• idler pulley
• idling
• idly
• Ido
• idocrase