development, structure, construction, industry, activity, crane, build, machine, project, industrial, home, outdoor, architecture, machinery, city, engineering, equipment, job, work, site, excavator, infrastructure, engineer, workplace, mover, steel, house, contrast, dock, dwelling, flesh, frame, profession, grus, human body, technology, district, platform, constellation, housing, improvement, application, outside, employee, body, metropolis, mixture, urban area, worker, anatomy, difficulty, urban center, pier, building, task, undertaking, workman, person, alloy, problem