This is the 153rd most frequent Hebrew word.
אולם
Hall; however; but.
Here, 'אולם' serves as a conjunction meaning 'yet' or 'however', connecting two contrasting ideas.
הבחירה אינה פשוטה, אולם עלינו להחליט בהקדם.
The choice is not simple, yet we must decide soon.
In this usage, 'אולם' once again means 'hall', denoting a large room or space for events.
האולם היה מקושט בפרחים לכבוד החגיגה.
The hall was decorated with flowers for the celebration.
In this sentence, 'אולם' refers to a 'hall' or 'auditorium', specifically a cinema hall.