a female given name

亜砒酸: (chemistry) arsenious acid

相子, 相こ: a tie, a draw, where both parties have the same score

(slang) Short for ありがとうございます (arigatō gozaimasu).

彩乃: a female given name / 綾野: a surname

新た: new

excuse me (to draw attention) / well, uh, er, umm (expression of confusion or uncertainty) / ah, oh

"excuse me!" call for attention or pause / no; expression of disagreement or correction / request to stop or wait a short time

Understood.

(2channel slang) deletion; (by extension) disappearance, death, etc.