Sliceable means able to be cut into thin, flat pieces. When something is sliceable, you can use a knife to divide it into neat sections. Fresh bread is sliceable once it cools down. A block of cheese is sliceable. A ripe tomato is sliceable, but an undercooked potato might be too hard.

In cooking, whether something is sliceable often determines how you can serve it. A perfectly roasted turkey breast should be sliceable so you can cut it into portions for everyone at the table. A cake needs to be sliceable so each person gets a piece. When a recipe says to use “sliceable sandwich bread,” it means bread firm enough to cut cleanly without falling apart or getting squished.

The word also appears in technology. Computer scientists talk about sliceable networks that can be divided into separate virtual sections, each working independently. But in everyday conversation, sliceable almost always describes food that's ready to be cut into portions.