Of a generator or power plant: connected to the grid. / Of a computer: actively connected to the Internet or to some other communications service. / Available over, or delivered from, the Internet.

(computing, transitive) To bring (a system, etc.) online; to promote to an active or running state.

While online; while in a running or active state, or connected to the Internet.

A person who is online; a user of the Internet or similar service.

plural of onliner

simple past tense and past participle of online

Third-person singular simple present indicative form of online

present participle of online

(idiomatic) To enter service or become active. / (idiomatic) To login to an Internet communication system, such as an instant messenger, online game or forum.

(machine learning) The training of a neural network using stochastic gradient descent with a mini-batch size of one; only one input is used for training at a time.