to do something without help from other people After two years as a member of the quartet, Sinatra decided to go it alone.Even countries cannot go it alone in the world today.
to do something by yourself and without help from other people Honda has chosen to go it alone rather than set up a joint venture with an American partner.
Undertake a project, trip, or responsibility without the aid or presence of others. For example, If you decide not to help, I'll just go it alone. [Mid-1800s]