sound out

US /saʊnd aʊt/
UK /saʊnd aʊt/
"sound out" picture
1.

to pronounce a word by speaking each letter or part separately

:
The teacher asked the student to sound out the difficult word.
I had to sound out the new name to make sure I pronounced it correctly.
2.

to try to find out what someone thinks or feels about something by talking to them

:
I need to sound out my colleagues about the new proposal before presenting it to the boss.
She decided to sound out her parents about moving abroad.