place in which a person bathes under a spray of water

A shower is where a person cleans themself by using water. They stand up when they use a shower and usually do not wear clothes in a shower. Showers have a shower head that squirts out water usually from above.

A shower head in a shower - this shower head is squirting out water

There are different kinds of showers. One is a "power shower" where there are many jets of water from all around. Another is the one in the picture. Some are in baths, and others are on their own.