(Kansai, more emphatic) Alternative form of あほ (aho, “idiot”)

本線: main or trunk line, such as a railroad line or electrical line

to play an instrument skillfully, freely

the first sight of something / something seen for the first time

one should start a big project with immediate, practical steps; start small / the person who proposes something should be the first one to take practical steps to implement it

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

bureau, department / channel such as on television