The white question mark emoji symbolizes inquiry and uncertainty.
Unicode: U+2754
The white question mark emoji is commonly used to express confusion, seek clarification, or pose a question. It can also convey a sense of curiosity or uncertainty about a particular topic or situation.
"I didn't quite follow that last part. ❔"
"What's the plan for the weekend? ❔"
"I'm not sure I understand the instructions. ❔"