??

?? (two question marks, also written as Unicode character U+2047 ⁇) may refer to:

• ??, the chess annotation symbol for a bad move (a blunder)
• ??, an emphasis upon a question
• Null coalescing operator, in computer programming
• In Windows, the Unicode character ⁇ is valid in a file or directory name, though the normal question mark is a reserved character which cannot be so used.

See also

• Question mark (disambiguation)