Bug
Bug noun - An abnormal state that disrupts a plant's or animal's normal bodily functioning.
Usage example: I can't go to work today because I've caught some bug that's going around
Sickness
Sickness noun - An abnormal state that disrupts a plant or animal's normal bodily functioning.
Usage example: a sickness that resulted in the death of millions of the nation's elm trees
Bug is a synonym for sickness in illness topic. You can use "Bug" instead a noun "Sickness", if it concerns topics such as ill or abnormal condition, lurgy. informal substitute
Mutual synonyms
How words are described
Cite this Source
Sickness and Bug. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/bug/sickness
Bug & Sickness. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/bug/sickness>.
Sickness or Bug. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/bug/sickness.
Google Ngram Viewer shows how "bug" and "sickness" have occurred on timeline