also: オン・ライン
online
General use for internet-connected activities, services, or states.
The meeting will be held online.
Online shopping is convenient.
on the line
Sports term used when a ball lands on the boundary line, especially in tennis and volleyball.
That shot was on the line.
Recently more people shop online.
That shot landed on the line and scored a point.
I talked with my friend abroad online.
The system finally came online.
online control