Focus on the pronunciation of online
› INTERNET, IT bought, done, or used on the internet: All our products are readily available online.do/trade/work online The chain of 315 stores also trades online.buy sth/order sth/shop online Shoppers are getting used to buying online.apply/book online Compare more than 400 credit cards and apply online.
be/go online › INTERNET, IT to be or become connected to the internet so that you can use its services: I went online to look for a cheap flight.
come online › to be connected to a system and start production of goods, energy, services, etc.: A gas field producing an estimated 20 million cubic meters a day is scheduled to come online by the end of next year. → Compare offline