: to advance or improve (oneself, someone else, or something) in or as if in a game. Collect cards and magic potions, then level up your favourite dragons to increase their abilities.

It means an improvement that is permanent, and continues to enhance your life going forward.

It's a simple, graspable way to assess where you are in contrast with where you need to be. People who write about video games have naturally used level up as a phrasal verb for advancing from one level of a game to the next: In-game tutorial – several things were designed from scratch, while others were remodeled.

To increase, raise, or bring up the overall level or value through a calculated mean. average up. boost. elevate. heighten.