"sicknesses" in the noun sense
1. illness, unwellness, malady, sickness
impairment of normal physiological function affecting part or all of an organism
2. sickness
defectiveness or unsoundness
"drugs have become a sickness they cannot cure"
"a great sickness of his judgment"
3. nausea, sickness
the state that precedes vomiting
Source: WordNet® (An amazing lexical database of English)
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