??

?? (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.