something that is dangerous and likely to cause damage:
hazard
a device for finding direction with a needle that can move easily and that always points to magnetic north
compass
to provide something that is wanted or needed, often in large quantities and over a long period of time:
supply
a device that produces electricity to provide power for electronic devices, cars, etc.:
battery
the movement of fresh air around a closed space, or the system that does this:
ventilation
the act of moving people from a dangerous place to somewhere safe:
evacuation
a device that produces heat:
heater
to harm or spoil something
damage
to say that an event or action will happen in the future, especially as a result of knowledge or experience:
predict