Ключевые слова: alert, assistance, attention, business, button, call, cancel, caution, communication, control, design, emergency, exclamation, factory, graphic, help, icon, illustration, industry, isolated, key, keyboard, lost, machine, off, office, panic, point, press, push, red, render, request, round, safety, security, service, sign, signal, stop, support, suspend, switch, technical, technology, text, touch, warning, work,