Yes, branch is a Scrabble word!

Verb

1. Grow and send out branches or branch-like structures

2. Divide into two or more branches so as to form a fork

Noun

1. A division of some larger or more complex organization

2. A division of a stem, or secondary stem arising from the main stem of a plant

3. A part of a forked or branching shape

4. A natural consequence of development

5. A stream or river connected to a larger one

6. Any projection that is thought to resemble a human arm