v.1. To come to follow an even, flat path after rising or falling to some level: The airplane leveled off at 5,000 feet.
2. To stop changing after rising or falling to some level: Milk prices leveled off at $2 per gallon.
3. To make something smooth or flat: The carpenter used a plane to level off the top of the cabinet. I placed the uneven piece of molding in the vise and leveled it off with a file.