The phrase "a full auditorium" is correct and usable in written English.
It can be used to describe a situation where all the seats in an auditorium are occupied, typically during an event or performance.
Example: "The concert was a huge success, with a full auditorium cheering for the band."
Alternatives: "an occupied auditorium" or "a packed auditorium".
"We're just simply distraught," said James Maley, Collingswood's mayor, standing in front of a full auditorium.
Lecture notes filled the screen before an insert appeared in one corner showing a man addressing a full auditorium.
At the Cooper Union, last Saturday, the activist Jay Toole spoke to a full auditorium about these laws and their impact on gay life.
He nonetheless brought a full auditorium to its feet Thursday morning with a review of his work with Architecture for Humanity, a nonprofit organization he started from his Manhattan studio apartment with a scattering of volunteers and a shoestring budget.
He held a full auditorium of book-savvy, tennis-savvy, celebrity-savvy New Yorkers as deftly as he might handle a tennis ball before tossing it upward for a serve.
"Then it became, 'You should definitely get them out, they look great.'" Addressing a full auditorium at the Radio Academy radio festival, Church said: "To my mind, what this industry seems to want of its women increasingly is sex objects that appear childlike.
At a Mo Willems reading, you are likely to find a very full auditorium of small people and the larger people who care for them.
In the event, nothing happened in London the night after the riots except that a normally full auditorium had more empty seats than usual, patrons conjoined in the frothy, self-insulating realm of musical theater next to which civil unrest seemed fairly remote.
The former played to a two-thirds full auditorium in the 100-seat studio: a pretty good turnout on an evening outside of the school holidays when most other playhouses in the country are dark.
The conference, co-sponsored by the peace and social justice movement Code Pink and the National Lawyers Guild amongst others, was held at a full capacity auditorium at the Georgetown University Law Center in northwest Washington.
In an emotional meeting, most of the audience in the nearly full auditorium at Lincoln Junior High School stood, applauded and cheered when Carl Lambert, president of Action, announced that 98% of the members who voted rejected the plan.
