Definition of "branch out"
verb
third-person singular simple present branches out, present participle branching out, simple past and past participle branched out
(intransitive, idiomatic) To expand one's interests or activities in a new direction.
Quotations
Once relegated to facelifts and fat reduction, medical tourism has branched out into almost every kind of procedure, including bypass surgery, heart-valve replacement, angioplasty, knee reconstruction, and spinal fusion.
2008 October, Mark Jenkins, “Need surgery? Call a travel agent”, in Men's Health, volume 23, number 8, page 152