noun ·see offset, 7.
2. set-off ·noun ·same·as offset, ·noun, 4.
3. set-off ·noun that which is set off against another thing; an offset.
4. set-off ·noun that which is used to improve the appearance of anything; a decoration; an ornament.
5. set-off ·noun a counterclaim; a cross debt or demand; a distinct claim filed or set up by the defendant against the plaintiff's demand.