to stop something undesirable from occurring or to take precautions against it

to take advance measures or precautions to stop something undesirable from occurring

to prevent and treat or control diseases, pests, or environmental damage

to guard or protect against an attack, especially in a military, sports, or competitive context

the prevention and extinguishing of fires, and the emergency services and equipment related to fire safety

to take precautions or be on guard against potential trouble, danger, or risks

to defend or protect against an attack; defensive measures or actions

to defend or provide protection against harm, damage, or external attack through shielding or safety measures

to guard against the unexpected or any eventualities

The government department or ministry responsible for a country's national defense and military affairs.

The cabinet-level official responsible for a nation's defense and military affairs

to prevent epidemics

to protect against fire

used as a conjunction meaning so as to avoid or prevent a negative outcome

the act of resisting an attack or the state of being protected; defensive

the practice of managing or preventing the overflow of water to protect land and property

anti-aircraft defense

a vehicle equipped with firefighting apparatus such as hoses and ladders

describing devices, systems, or measures designed to prevent theft

to guard against

pertaining to national defense matters

defensive line or perimeter

an organized body of people and equipment for extinguishing fires

to attack and defend (usually in reference to opposing sides, or one party performing both roles)

firefighter; fireman

To prevent counterfeiting; anti-counterfeiting.

to guard against, be vigilant, or take precautions

reasonable self-defense or legitimate defense within a legal context

to take strict precautions; to guard strictly against something

firefighter; fireman

disaster prevention; to protect against natural disasters

designed to prevent sliding or skidding

the root of Saposhnikovia divaricata used in traditional Chinese medicine

to prevent cold or to keep warm

a lotion or cream applied to the skin to protect it from sunburn and UV radiation

a substance added to food or other perishable materials to prevent decomposition or spoilage

to suppress or prevent a riot, or relating to the measures and equipment used for such purposes

preventing biological decay, putrefaction, or the growth of microorganisms in organic matter

civil air defense (abbr. for [[人民防空|人民防空|ren2 min2 fang2 kong1]])

to prevent freezing; antifreeze

to take precautions and stay alert against potential danger, fraud, or errors