Modifier + 级
级 (jí) is a noun meaning "level," "grade," or "rank." It is used to indicate a degree or tier within a hierarchy or classification system. For example, 高级 means "high-level" and 初级 means "elementary level."
这门课分为三个级别。
Zhè mén kè fēn wéi sān gè jíbié.
This course is divided into three levels.
他已经通过了日语二级考试。
Tā yǐjīng tōngguò le Rìyǔ èr jí kǎoshì.
He has already passed the Japanese Language Proficiency Test Level 2.
这家酒店是五星级的。
Zhè jiā jiǔdiàn shì wǔ xīngjí de.
This hotel is five-star rated.