Assertion: sounding board | /r/Synonym | tester
Facets:
Source sentences:
text: A sounding board (also known as a tester) is a structure placed above or behind a pulpit or other speaking platform which helps to project the sound of the speaker.
text: A sounding board, also known as a tester and abat-voix is a structure placed above and sometimes also behind a pulpit or other speaking platform which helps to project the sound of the speaker.