1. Start to burn with a bright flame
   "The coal in the BBQ grill finally lit up" 
2. Make lighter or brighter
   - light, illume, illumine, illuminate 
3. Become clear
   - clear up, clear, brighten 
4. Ignite
   "The sky lit up quickly above the raging volcano" 
5. Begin to smoke
   "After the meal, some of the diners lit up"
   - fire up, light

Derived forms: lighting up, lit up, lights up

Type of: catch fire, combust, conflagrate, erupt, ignite, light, lighten, lighten up, take fire

• alanine
• alar
• Alaric
• alarm
• alarm bell
• alarm clock
• alarm system
• alarmed
• alarming
• alarmingly
• alarmism
• alarmist
• alarum
• alary
• alas
• Alaska
• Alaska cedar
• Alaska cod
• Alaska crab
• Alaska fur seal
• Alaska king crab
• Alaska Native
• Alaska Peninsula
• Alaska Range
• Alaska rein orchid