meshes

rocks, reefs, coral reef, sunken rocks, snags; sands, quicksands; syrt, syrtis; Goodwin sands, sandy foundation; slippery ground; breakers, shoals, shallows, bank, shelf, flat, lee shore, ironbound coast; rock ahead, breakers ahead., precipice; maelstrom, volcano; ambush; pitfall, trapdoor; trap (snare)., sword of Damocles; wolf at the door, snake in the grass, death in the pot; latency., ugly customer, dangerous person, le chat qui dort; firebrand, hornet's nest.