What does オンライン mean?
オンライン is a Japanese noun meaning “on-line” in English. It can also be translated as “on the line (of a ball; in tennis, volleyball, etc.)” depending on context. It is written as オンライン in hiragana, and onrain in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
オンラインでお話しした方がよろしければそうします。
If you need to go off-line, that is fine.