ˈsounding board BrE AmE noun
[countable usually singular] someone you discuss your ideas with in order to see if they think your ideas are good
sounding board for
John always used her as a sounding board for new ideas.
ˈsounding board BrE AmE noun
[countable usually singular] someone you discuss your ideas with in order to see if they think your ideas are good
sounding board for
John always used her as a sounding board for new ideas.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012