worker, workers, protecting, protective, protective clothes, welder, welders, welding, sparks, fire, fire danger, sparkle, spark, heated, hard work, mask, masks, ship, shipbuilding, shipbuilder, shipbuilders, dock, docks, shipyard, shipyards, breaktime, silhouette, heat, silhouetted, appearance, shipwright, disguise, arc, clothing, skilled worker, conduction, liveliness, platform, animation, attire, heat energy, workplace, activeness, vehicle, vitality, countenance, construction, fastening, pier, outline, light, person, craft, wright, craftsman, expression, joining