level up

verb3

1. •
   To raise to the same level or status; to improve so as to make as good as others.

   • The government promises to level up the department.
2. •
   To progress to the next level of player character stats and abilities, often by acquiring experience points in role-playing games.

   • I leveled up after defeating the dragon.
3. •
   (UK) To reduce economic and developmental inequalities across the United Kingdom.

   • Boris Johnson should consider setting targets to level up the UK’s weakest regions to tackle widespread inequality, according to one of the government’s senior independent policy advisers. — 2020