Just about anything used for fishing can be called tackle.
I know there are 'tackle boxes'.  I use them for my jewelry findings and beads.
Well a fishing rig is the completed assembly of tackle.
So, is tackle like line, lures, weights and . . .?
Also sinkers, floats, rods, reels, baits, lures, spears, nets, gaffs, traps, waders, etc...
So, why do they call it 'tackle'?
spoons, blades, spinners and clevises to attach spinner blades to fishing lures. Sometimes the term fishing rig is used for a completed assembly of tackle ready for fishing.
Fishing tackle can be contrasted with fishing techniques. Fishing tackle refers to the physical equipment that is used when fishing, whereas fishing techniques refers to the manner in which the tackle is used when fishing.
The term "tackle", with the meaning "apparatus for fishing", has been in use from 1398 AD. Fishing tackle is also called
Fishing tackle
Fishing tackle is the equipment used by anglers when fishing. Almost any equipment or gear used for fishing can be called fishing tackle. Some examples are hooks, lines, sinkers, floats, rods, reels, baits, lures, spears, nets, gaffs, traps, waders and tackle boxes.
Gear that is attached to the end of a fishing line is called "terminal tackle". This includes hooks, leaders, swivels, sinkers, floats, split rings and wire, snaps, beads,