To branch out is to start doing something new and different. Branch out into publishing, time to branch out.
It takes into before the new thing, and it implies keeping the old one as well. The picture is a tree, which does not lose the trunk by growing a branch.
1phrasebranch outTo start doing something new and different.
“The bakery decided to branch out into catering.”
branch out is a phrase.
Practised in Phrasal Verbs