Ключевые слова: accident, alarm, alert, attention, available, broken, caution, danger, dangerous, depression, error, exclamation, fail, failure, focus, fraud, glass, hazard, icon, illustration, important, internet, magnifier, maintenance, mark, mistake, network, notice, page, problem, program, red, repair, risk, security, service, sign, stop, support, symbol, system, technical, technology, triangle, trouble, upgrade, warn, warning, web, website,