As the coronavirus pandemic grows in the U.S., states and communities are issuing strict recommendations for residents to stay at home or shelter in place. 

The terms differ in meaning from state to state, and even county to county. One state's "shelter-in-place" order may read the same as another's "stay-at-home" order.

For the most part, the directives mean that people should not congregate in groups and only leave the home for essential needs such as getting food, seeking medical care, or getting fresh air alone or with immediate family members while practicing social distancing.

Many states say they will be enforcing their orders, which can mean fines, closures of non-compliant businesses, or even imprisonment.

In the U.S. capital, Washington D.C., Mayor Muriel Bowser issued an order of closure of non-essential businesses Wednesday night through April 24, 2020, that's similar to many stay at home and shelter in place orders around the country.

Essential businesses include many sectors such as medical facilities and public works -- but also others that may be surprising. Take a look at what Washington D.C. says are essential businesses.