Hall
A piece of paper allowing students to be outside of classrooms during lessons (North American custom)
Hall pass
A road or course on which cars drive competitively to see who can do it the fastest.
Race track
The quality of not letting noise pass through
Sound proof
A large room in which people eat meals together
Dining hall
To find, especially by following clues and footsteps
Track down
A panel with many buttons that, when pressed, can play an array of different sounds
Soundboard
A place where musical events, plays or other shows are held. Often big in size with many seats and lights.
Soundtrack
A type of imaging test that helps pregnant women see their child in the womb
Ultrasound
The administrative building of a municipal government
City hall
After you've forgotten, you have to retrace your steps
Backtrack
Safe and sound
Mess hall
A list of a person's accomplishments, bad or good.
Track record
Someone knocked out, resting, snoozing even.
Sound asleep