noun
plural -leries
[count] a room or building in which people look at paintings, sculptures, etc.
a business that sells paintings, sculptures, etc.
a group or collection of people or things
the highest section of seats in a theater
the people sitting in the gallery
the people who are watching a tennis or golf match - see also shooting gallery
play to the gallery
to do things that you think will be popular among many people instead of doing what you think is right
US