light up

Verb

• begin to smoke
  • After the meal, some of the diners lit up
    

• ignite
  • The sky lit up quickly above the raging volcano
    

• become clear
  • The sky cleared after the storm
    

• make lighter or brighter
  • This lamp lightens the room a bit
    

• start to burn with a bright flame
  • The coal in the BBQ grill finally lit up
    

Related words

• Synonyms: 
  fire up , light , clear up , clear , brighten , illume , illumine , illuminate
• Antonyms: 
  overcast , cloud