We sort by primary purpose, not by whether something is sharp. Knives holds folding and fixed blades. Gear & Outdoors holds axes, machetes and camp tools. Multi-Tools holds combination tools. Fishing holds fillet and bait knives. Sharpeners holds maintenance kit. Licensed & Movie holds licensed pieces. Closeouts holds clearance stock from anywhere.
Primary purpose. A machete has an edge but its job is chopping, so it sits in Gear & Outdoors. A multi-tool may carry a blade but its job is carrying several implements, so it sits in Multi-Tools.
Each product appears in exactly one category. Nothing is cross-listed, which is why browsing works predictably.
Closeouts is the exception. It holds clearance stock from anywhere in the range, so a closeout folder and a closeout machete can be neighbors.
If you are hunting for a specific type rather than a bargain, start in the functional category and use the search box.
As of this build the category holds 796 live products, which is 56% of everything we list, across 9 brands (Buck, Böker, Böker Magnum, Böker Plus, CIVIVI, Case, Gerber, Hogue, Kershaw), priced from $5.99 to $350.10. The most expensive pieces in it today are Böker Lockback Thuya Wood, Böker Arbolito Esculta Stag, Böker Arbolito Guides Combo.
These numbers are recounted every time the site is rebuilt, so they track the live catalog rather than a figure typed in once.