枝
← →
bough
On-Yomi: シ — Kun-Yomi: えだ
Koohii stories:
1) [smithsonian] 29-11-2006(269): The tree's primary branch is known as the bough.
2) [Danieru] 6-6-2008(94): Differentiate between BOUGH and branch (#711 支): 'branch' is smaller, and can also refer to the branch of a store ( 支店 ), which has nothing to do with a tree. But a BOUGH is a main part of a tree, perhaps where the trunk splits into several large boughs, and so it logically utilizes the 木 radical.
3) [tcjeff] 10-6-2008(25): I think of a bough as a branch that's big enough to be a tree itself.
4) [MeisterLlama] 29-11-2008(13): 支 (branch) is not actually used for tree branches, but rather for conceptual branches, like a store branch, or a branch of mathematics. 枝 (bough), on the other hand, is an actual branch from a tree.
5) [fuaburisu] 14-10-2005(11): As James Heisig suggests, let's take a moment to focus on the differences between a bough, a branch, and a twig. A twig is “a small, leafless branch of a woody plant”. A bough is “a large or main branch of a tree” (a branch is somewhere in between the boughs and the twigs).