| Answer | Crossword Clue |
|---|---|
| BRAND | X is common |
| BRAND | X is one |
| STRIKE | Its symbol is "X" |
| STRIKE | Its symbol is X |
| CHI | Its symbol is X |
| USSTEEL | Its stock symbol is X |
| CAMERA | X-ray machine is one |
| USSTEEL | Its NYSE symbol is "X" |
| UNIX | Mac OS X is based on it |
| EPEE | Its playing area is 2 x 14 meters |
| STANDARDGOLDBAR | It is 7" x 3 5-8" x 1 3-4" |
| TRUTH | "The ... is out there" (catchphrase on "The X-Files") |
