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

Encyclopedia: Twice

• violator
• violence
• violent
• violent death
• violent disorder
• violent storm
• violent stream
• violently
• violet
• violet family
• violet suksdorfia
• violet wood sorrel
• violet-black
• violet-blue
• violet-colored
• violet-coloured
• violet-flowered
• violet-flowered petunia
• violet-pink
• violet-purple
• violet-scented
• violet-streaked
• violet-tinged
• violet-tinted
• violin