Group
Association, Team
Sew thread through your top hat and to the top hats of other people you know and you'll turn into a group of top hat wearing people. You're all connected by the thread now, so everyone will assume you're a group, even if that's all you guys have going for yourselves.
そ
くみ
None
Everyone in this group loves cumin (くみ). You know, the spice or seed. The group take off their top hats and fill them with cumin. You're officially a group for lovers of cumin.