an interwoven mesh of metal or cord: latticework, network, or the meshes of a net
The word names anything woven into a crisscross mesh, a grid of strands with openings between them. Its most frequent use is architectural: the ornamental bronze network that wrapped the tops of the two great pillars, Jachin and Boaz, at the entrance of Solomon's temple, hung with rows of bronze pomegranates. Ten of its twelve verses describe that one feature, which is why English Bibles usually render it "network" there.
The same word stretches to cover a household lattice, the screen through which King Ahaziah fell in 2 Kings 1:2, and in poetry the meshwork of a hunting trap that catches a man by the feet (Job 18:8). What ties these uses together is the pattern rather than the purpose: interlaced strands leaving a web of holes, whether cast in bronze for beauty or knotted in cord to snare prey.
A close relative, רֶשֶׁת, covers much the same ground, serving both as the bronze grating of the altar and as the hunter's net.