1. By comparing languages
   "she studied the phenomenon cross-linguistically"

See also: cross-linguistic

• amphiboly
• amphibrach
• Amphicarpa
• Amphicarpa bracteata
• Amphicarpaea
• Amphicarpaea bracteata
• amphichiral
• amphictyony
• amphidiploid
• amphidiploidy
• amphigory
• amphimacer
• amphimixis
• Amphineura
• Amphioxidae
• amphioxus
• amphipod
• Amphipoda
• Amphiprion
• Amphiprion percula
• amphiprostylar
• amphiprostyle
• amphiprotic
• amphisbaena
• Amphisbaenia