understanding, comprehension / appreciation

understand, comprehend / appreciate

important, significant

importance, consequence, significance

basis, foundation

(regional, Osaka, Kyoto) the script of a kabuki drama / short for 絵入根本 (e iri nehon, “illustrated kabuki script”)

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

importance

fundamental, radical, basic / drastic, thorough

impossible to understand, utterly confused