Senses
级/ 級 level
level; rank; grade; an order or position in a hierarchy
级/ 級 grade
a school grade or class year
级/ 級 [classifier]
(classifier) used for steps, stairs, levels of intensity such as wind or earthquakes, or degrees of rank
级/ 級 step
a step of a staircase or ladder
级/ 級 severed head
a severed head of an enemy (often used as a classifier for heads taken in battle)