尊敬語 => Honorifics N4
丁寧語 => polite form N4
謙譲語 => Humble form N4
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
一応 => more or less; pretty much; roughly; tentatively ~ N2
一体 => …the heck; …in the world; …on earth N3
と言っている => To say that ... N3
Speaking