make efforts, busy oneself / run about

the main text (as opposed to appendices etc.) / an official document (as opposed to a draft) / an original document (as opposed to a copy)

(botany) herb; herbaceous plant / draft; sketch

(baseball, softball) a home run

State of Japan (de facto official name of Japan, 1947 to present)

Honshu, the main island of Japan, with 100 million people, 4/5 of the Japanese population.

seriousness

innate field of skill

true meaning; underlying principle / (semantics) original meaning

official position / oneself