ACCIDENT, ALARM, ATTENTION, BACKGROUND, BIG, BUSINESS, BUTTON, BUTTONS, CAUTION, CLOSEUP, CONCEPT, CONTROL, COPY, DANGER, ELECTRIC, EMERGENCY, FOR, HAND, HELP, HIGH, INDUSTRY, ISOLATED, MACHINE, MANUAL, OBJECT, OR, PANIC, POWER, PRESS, PRESSING, PROBLEMS, PROTECTION, PUSH, RED, RESCUE, SAFETY, SECURITY, SERVICE, SHUTDOWN, SIGN, SPACE, STOP, SUPPORT, SWITCH, TECHNOLOGY, TROUBLE, URGENCY,