sound
verb/sõˈdaɾ/medium
son·dar
Definition
To investigate, explore, or measure the depth of something; to try to know someone's opinions or intentions.
We will sound out public opinion before the decision.
The ship used sonar to sound the seabed.
Common collocations
to sound out the terrainto sound out opinionsto sound depths
Etymology
Do francês 'sonder', do germânico 'sund' (mar).