1. Two times
   "I called her twice" 
2. To double the degree
   - doubly, double

Encyclopedia: Twice

• Hoheria populnea
• Hohhot
• hoi polloi
• hoick
• hoise
• hoisin sauce
• hoist
• hoister
• hoity-toity
• Hoka
• Hokan
• hokey
• hokey-cokey
• hokey-pokey
• Hokkaido
• Hokkianese
• hokum
• Hokusai
• holandric gene
• Holarrhena
• Holarrhena antidysenterica
• Holarrhena pubescens
• Holbein
• Holbein the Elder
• Holbein the Younger