1. Improve one's skills, knowledge, or status
   "He's trying to level up his coding skills to get a better job"
    
2. Improve the economic and social conditions of less prosperous areas to reduce regional inequality
   "The government pledged to level up the North of England"
    
3. Progress to a higher level, especially in video games
   "She leveled up her character after completing the quest"

Derived forms: levelling up, levelled up, levels up

Encyclopedia: Level up