防衛【ぼうえい】
defense, defence, protection
国防【こくぼう】
national defence, national defense
防止【ぼうし】
prevention, check
予防【よぼう】
prevention, protection (against), precaution
防災【ぼうさい】
disaster preparedness, prevention of damage resulting from a natural disaster, protection against disaster
消防【しょうぼう】
fire fighting, fire department, fire brigade
攻防【こうぼう】
offense and defense, offence and defence
防御【ぼうぎょ】
defense, defence, safeguard, protection
防犯【ぼうはん】
prevention of crime, security (device, camera, etc.)
堤防【ていぼう】
bank, weir, embankment, levee
防火【ぼうか】
fire prevention, fire fighting, fire proof
防水【ぼうすい】
waterproofing, making watertight
防音【ぼうおん】
soundproofing
防戦【ぼうせん】
defensive fight (battle)
防波堤【ぼうはてい】
breakwater, mole
防疫【ぼうえき】
communicable disease control (e.g. by quarantine, disinfection, etc.), prevention of epidemics
防ぐ【ふせぐ】
to defend against, to protect against, to prevent, to avert, to avoid