I. ˈ ̷ ̷+ˌ- intransitive verb
Etymology: sub- + branch (v.)
: to divide into subbranches
II. noun
Etymology: sub- + branch (n.)
1. : a branch of a branch
complex organizations that ramify into branches and subbranches
2. : a branch (as of a business firm) that is of secondary importance and usually less complete in function or service than a main branch