Meaning of “sounding board” in the English Dictionary

british dictionary

(Definition of “sounding board” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"sounding board" in American English

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sounding boardnoun [ C ]

us /ˈsɑʊn·dɪŋ ˌbɔrd, ˈboʊrd/

someone you use to test a new idea or suggestion to see if it is liked:

President Johnson said he used his wife as a sounding board for many of his ideas.

(Definition of “sounding board” from the Cambridge Academic Content Dictionary © Cambridge University Press)