Productive — but inside compounds it almost never keeps the full 网 shape. The flattened top variant 罒 (网字头, 'horizontal eye') drives the everyday characters: 罗 (gauze), 罚 (punish), 罪 (crime), 置 (place), 署 (office), 罢 (cease). The shorter 罓 variant survives in a handful of forms. Strong meaning clue: trapping, snaring, cataloguing, regulating.