to end a message, email, or broadcast
メッセージ、メール、または放送を終了する (messe-ji, meeru, mata wa housou o shuuryou suru)
"I’ll sign off here. Talk to you later!"
"ここでsign offします。後で話そう!" (Koko de sign off shimasu. Ato de hanasou!)
to continue trying hard to achieve something
to interrupt someone while they are speaking
when liquid rises and flows over the edge of the pot
to move around and talk to different people at a social even...
to make international trade easier by removing barriers
to discuss possible objectives informally