级 (w)

(jí) level; grade; rank; step; CL:個|个[ge4]

级别 (w)

(jíbié) (military) rank; level; grade

级差 (w)

(jíchā) differential (between grades); salary differential

级强 (w)

(jíqiáng) named grade or higher; at least stated magnitude (of earthquake)

级联 (w)

(jílián) cascade; cascading

级距 (w)

(jíjù) numerical range; interval; taxation band