The phrase "multiple levels" means having more than one level or layer of something. It implies that there are different aspects or degrees to consider or understand. Full definition
The software possesses many key features, which help in the creation and practice of differentiated learning experiences in classrooms, with students of multiple levels of abilities. (emergingedtech.com)
Schools under this policy would be allocated points based on multiple levels of performance. (morganpolikoff.com)
It is a game whose narrative works at multiple levels of meaning. (buttonmashing.com)