| calamity |  |  | 
| n. (event) | 1. calamity, cataclysm, catastrophe, disaster, tragedy | an event resulting in great loss and misfortune.; "the whole city was affected by the irremediable calamity"; "the earthquake was a disaster" | 
|  | ~ misfortune, bad luck | unnecessary and unforeseen trouble resulting from an unfortunate event. | 
|  | ~ act of god, force majeure, inevitable accident, unavoidable casualty, vis major | a natural and unavoidable catastrophe that interrupts the expected course of events.; "he discovered that his house was not insured against acts of God" | 
|  | ~ apocalypse | a cosmic cataclysm in which God destroys the ruling powers of evil. | 
|  | ~ famine | a severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death. | 
|  | ~ kiss of death | something that is ruinous.; "if this were known it would be the kiss of death for my political career" | 
|  | ~ meltdown | a disaster comparable to a nuclear meltdown.; "there is little likelihood of a meltdown comparable to the American banking collapse in March 1933" | 
|  | ~ plague | any large scale calamity (especially when thought to be sent by God). | 
|  | ~ visitation | any disaster or catastrophe.; "a visitation of the plague" | 
|  | ~ tidal wave | an unusual (and often destructive) rise of water along the seashore caused by a storm or a combination of wind and high tide. | 
|  | ~ tsunami | a cataclysm resulting from a destructive sea wave caused by an earthquake or volcanic eruption.; "a colossal tsunami destroyed the Minoan civilization in minutes" | 
| catastrophe |  |  | 
| n. (state) | 1. catastrophe, disaster | a state of extreme (usually irremediable) ruin and misfortune.; "lack of funds has resulted in a catastrophe for our school system"; "his policies were a disaster" | 
|  | ~ adversity, hard knocks, hardship | a state of misfortune or affliction.; "debt-ridden farmers struggling with adversity"; "a life of hardship" | 
| n. (phenomenon) | 2. cataclysm, catastrophe | a sudden violent change in the earth's surface. | 
|  | ~ geological phenomenon | a natural phenomenon involving the structure or composition of the earth. | 
|  | ~ nuclear winter | a long period of darkness and extreme cold that scientists predict would follow a full-scale nuclear war; a layer of dust and smoke in the atmosphere would cover the earth and block the rays of the sun; most living organisms would perish. | 
| danger |  |  | 
| n. (state) | 1. danger | the condition of being susceptible to harm or injury.; "you are in no danger"; "there was widespread danger of disease" | 
|  | ~ condition, status | a state at a particular time.; "a condition (or state) of disrepair"; "the current status of the arms negotiations" | 
|  | ~ clear and present danger | a standard for judging when freedom of speech can be abridged.; "no one has a right to shout `fire' in a crowded theater when there is no fire because such an action would pose a clear and present danger to public safety" | 
|  | ~ hazardousness, perilousness | the state of being dangerous. | 
|  | ~ insecurity | the state of being subject to danger or injury. | 
|  | ~ riskiness, peril | a state of danger involving risk. | 
|  | ~ vulnerability, exposure | the state of being vulnerable or exposed.; "his vulnerability to litigation"; "his exposure to ridicule" | 
| n. (act) | 2. danger, peril, risk | a venture undertaken without regard to possible loss or injury.; "he saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing" | 
|  | ~ venture | any venturesome undertaking especially one with an uncertain outcome. | 
|  | ~ chance | a risk involving danger.; "you take a chance when you let her drive" | 
|  | ~ crapshoot | a risky and uncertain venture.; "getting admitted to the college of your choice has become a crapshoot" | 
|  | ~ gamble | a risky act or venture. | 
| n. (state) | 3. danger | a cause of pain or injury or loss.; "he feared the dangers of traveling by air" | 
|  | ~ causal agency, causal agent, cause | any entity that produces an effect or is responsible for events or results. | 
|  | ~ endangerment, hazard, jeopardy, peril, risk | a source of danger; a possibility of incurring loss or misfortune.; "drinking alcohol is a health hazard" | 
|  | ~ powder keg | a potentially explosive state. | 
|  | ~ menace, threat | something that is a source of danger.; "earthquakes are a constant threat in Japan" | 
| n. (location) | 4. danger | a dangerous place.; "He moved out of danger" | 
|  | ~ area, country | a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).; "it was a mountainous area"; "Bible country" | 
| disaster |  |  | 
| n. (act) | 1. disaster | an act that has disastrous consequences. | 
|  | ~ destruction, devastation | the termination of something by causing so much damage to it that it cannot be repaired or no longer exists. | 
| peril |  |  | 
| n. (state) | 1. endangerment, hazard, jeopardy, peril, risk | a source of danger; a possibility of incurring loss or misfortune.; "drinking alcohol is a health hazard" | 
|  | ~ danger | a cause of pain or injury or loss.; "he feared the dangers of traveling by air" | 
|  | ~ health hazard | hazard to the health of those exposed to it. | 
|  | ~ moral hazard | (economics) the lack of any incentive to guard against a risk when you are protected against it (as by insurance).; "insurance companies are exposed to a moral hazard if the insured party is not honest" | 
|  | ~ occupational hazard | any condition of a job that can result in illness or injury. | 
|  | ~ sword of damocles | a constant and imminent peril.; "the possibility hangs over their heads like the sword of Damocles" | 
| n. (state) | 2. peril, riskiness | a state of danger involving risk. | 
|  | ~ danger | the condition of being susceptible to harm or injury.; "you are in no danger"; "there was widespread danger of disease" | 
|  | ~ speculativeness | financial risk.; "he rejected stocks that didn't pay dividends because of their speculativeness" | 
| v. (stative) | 3. endanger, imperil, jeopardise, jeopardize, menace, peril, threaten | pose a threat to; present a danger to.; "The pollution is endangering the crops" | 
|  | ~ exist, be | have an existence, be extant.; "Is there a God?" | 
| v. (communication) | 4. endanger, expose, peril, queer, scupper | put in a dangerous, disadvantageous, or difficult position. | 
|  | ~ affect, bear upon, bear on, impact, touch on, touch | have an effect upon.; "Will the new rules affect me?" | 
|  | ~ compromise | expose or make liable to danger, suspicion, or disrepute.; "The nuclear secrets of the state were compromised by the spy" | 
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