sliver

A long piece cut or rent off; a sharp, slender fragment; a splinter.

(regional US) Specifically, a splinter caught under the skin.

A strand, or slender roll, of cotton or other fiber in a loose, untwisted state, produced by a carding machine and ready for the roving or slubbing which precedes spinning.

(fishing) Bait made of pieces of small fish. Compare kibblings.

(US, New York) A narrow high-rise apartment building.

A small amount of something; a drop in the bucket; a shred.