次第で/次第だ/次第では => Depending on, So N2
尊敬語 => Honorifics N4
次第 => as soon as ~ N2
丁寧語 => polite form N4
謙譲語 => Humble form N4
次第だ => depending on; so ~ N2
一緒に => together N5
一度に => all at once N3
一通り => Basically, (get) over, done N2
Base, base
と言う/と言っていた => you could say; one might say; I'd say ~ N5
は..語で何ですか => What does it mean... N5
Explain
一方だ => more and more; continue to ~ N2