| Main Entry: | |
| Part of Speech: | noun |
| Definition: | infection |
| Synonyms: | bane, contamination, corruption, illness, miasma, pestilence, plague, poison, pollution, taint, transmission, venom, virus |
| Main Entry: | disease |
| Part of Speech: | noun |
| Definition: | ailment, affliction |
| Synonyms: | ache, affection, attack, blight, breakdown, bug*, cancer, canker, collapse, complaint, condition, contagion, contamination, convulsions, debility, decrepitude, defect, disorder, distemper, endemic, epidemic, feebleness, fever, fit, flu, hemorrhage, ill health, illness, indisposition, infection, infirmity, inflammation, malady, misery, pathosis, plague, seizure, sickliness, sickness, spell, stroke, syndrome, temperature, unhealthiness, unsoundness, upset, virus, visitation |
| Notes: | decease is the event of dying or departure from life; disease is an impairment of health or a condition of abnormal and harmful functioning illness means sickness or poor health, while a disease is an impairment of health or a condition of abnormal functioning |
| Antonyms: | health |
| Main Entry: | epidemic |
| Part of Speech: | noun |
| Definition: | widespread disease |
| Synonyms: | contagion, endemic, growth, outbreak, pest, pestilence, plague, rash, scourge, spread, upsurge, wave, what's going around |
| Notes: | an endemic is a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location; an epidemic is a widespread outbreak of an infectious disease that infects many people at the same time; a pandemic is an epidemic that is geographically widespread occurring throughout a region or even throughout the world |
| Main Entry: | infection |
| Part of Speech: | noun |
| Definition: | contamination |
| Synonyms: | bug*, communicability, contagion, contagiousness, corruption, defilement, disease, epidemic, flu, germs, impurity, insanitation, poison, pollution, septicity, virus, what's going around |
| Antonyms: | sanitation, sterility |
| Main Entry: | malady |
| Part of Speech: | noun |
| Definition: | disease |
| Synonyms: | ache, affection, affliction, ailment, attack, blight, bug*, cancer, complaint, condition, contagion, debility, disability, disorder, distemper, epidemic, fever, flu, ill health, illness, infection, infirmity, inflammation, plague, sickness, syndrome, virus |
| Main Entry: | pest |
| Part of Speech: | noun |
| Definition: | person or thing that presents problem |
| Synonyms: | annoyance, badgerer, bane, besetment, blight, blister, bore, bother, botheration, bug*, contagion, crashing bore, creep, curse, drag, drip, epidemic, exasperation, headache, infection, irritant, irritation, nag, nudge, nuisance, pain in the neck, pain*, pesterer, pestilence, pill, plague*, scourge*, tease*, thorn in side, tormentor, trial*, trouble, vexation, virus* |
| Main Entry: | pestilence |
| Part of Speech: | noun |
| Definition: | epidemic |
| Synonyms: | contagion, disease, endemic, infection, outbreak, plague, rash, scourge, sickness, virus |
| Main Entry: | plague |
| Part of Speech: | noun |
| Definition: | disease that is widespread |
| Synonyms: | affliction, contagion, curse, epidemic, hydra, infection, infestation, influenza, invasion, outbreak, pandemic, pestilence, rash, ravage, scourge |
| Main Entry: | poison |
| Part of Speech: | noun |
| Definition: | substance that causes harm, death |
| Synonyms: | adulteration, bacteria, bane, blight, cancer, contagion, contamination, corruption, germ, infection, malignancy, miasma, toxicant, toxin, toxoid, venin, venom, virus |
| Antonyms: | antidote |