Contact tracing is finding out all the people who have come into direct contact with a person infected with a disease.

Rona—often in the phrase the rona—is an informal shortening of coronavirus. Coronavirus is popularly shortened to corona, which was apparently further clipped.

a strict isolation imposed to prevent the spread of disease.

Social distancing refers to measures that reduce contact between large groups of people such as churches, schools, concerts and sports.

The (very limited) group of people you see during self-isolation; one of the many slang terms that plays on quarantine.

During the coronavirus outbreak, shelter in place refers to orders for people to stay at home and not leave unless absolutely necessary.

A blend of COVID-19 and idiot, covidiot is a slang insult for someone who disregards healthy and safety guidelines about the novel coronavirus.

means “relating to any disease of animals communicable to humans.” The noun form is zoonosis.

COVID toes is an informal name for reddish sores on the toes and sometimes fingers, considered a possible symptom of COVID-19

Flatten the curve means slowing the spread of an epidemic disease so that the capacity of the healthcare system doesn’t become overwhelmed.

a machine that helps a patient breathe. It pumps oxygen into the lungs and removes carbon dioxide through a tube.

Symptom is a phenomenon that arises from and accompanies a particular disease or disorder and serves as an indication of it.