teachings, doctrine, lesson

to study / to learn

important, significant

importance, consequence, significance

extraordinary, unusual

emergency

very; extremely / exceedingly; tremendously

the first and second; grade A and B / the first two of the Heavenly Stems, 甲 (kinoe) and 乙 (kinoto) / the pros and cons of something, the ups and downs, the strengths and weaknesses

(rare) short for 甲乙経 (Kōotsu Kyō), a medical text from the Jin dynasty of ancient China

(traditional Japanese music) the high notes and low notes, the highs and lows of a piece of music