一级

一级	yī jí	first class / category A
一	yī	one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit
级	jí	level / grade / rank / step (of stairs) / CL:个 / classifier: step, level