| petition signature | 1.97 | Petition signatures. | ||
| voter signature | 0.79 | Electoral officials said she had not collected enough voter signatures. | ||
| witness signature | 0.46 | Bush counties were four times as likely as Gore counties to count ballots lacking witness signatures and addresses. | ||
| heat signature | 0.33 | FLIR stands for forward-looking infrared film, which, basically, picks up the heat signatures of objects. | ||
| radar signature | 0.33 | Because the Thunderbolt did not have its beacon activated, it gave off a distinct radar signature. | ||
| telltale signature | 0.26 | Unlike paper documents, it can be difficult to verify authorship of an e-mail, which carries no telltale pen-and-ink signature. |