a noun germ, in the context of the English language, can be used to refer to any invisible microorganism that causes a particular disease. It is often used to describe microscopic viruses, bacteria, or any other type of disease-causing germs. It has been noted to be synonymous with terms such as 'bug' and 'microbe' as well.
1. Strict hand-washing policies are in place in hospitals in order to prevent the spread of germs.
2. The most common source of foodborne illness is germs found on raw food.
3. His room was so germ-filled and unclean that I had to leave.
one should be mindful of the fact that germ can also have a figurative, non-literal meaning as well, in which it can be used to describe any kind of source of trouble or worry. As such, it is important to take into account the context in which the word is being used when deciding its correct usage.