ARGUMENT n.
The subject matter of a discourse, writing, or artistic representation; theme or topic; also, an abstract or summary, as of the contents of a book, chapter, poem. You and love are still my argument. Shak. The abstract or argument of the piece. Jeffrey. [Shields] with boastful argument portrayed. Milton.…
BRANCH a.
Diverging from, or tributary to, a main stock, line, way, theme, etc.; as, a branch vein; a branch road or line; a branch topic; a branch store.