| Words were scraped away with a penknife or inserted carefully in the lines of text, and then listed in an errata paragraph to attest that the approved document was unaltered. |
| Early in the morning of November 12, the day he was to be hanged, he cut his throat with a penknife and died seven days later. |
| Of the two kinds of jade, jadeite and nephrite, the former is harder than the latter and cannot be scratched with a penknife blade. |
| One man suffered penknife stab wounds to his back and another was hit around the head with a snooker cue. |
| Recently my brother was boarding a plane to Spain when he found he'd forgotten to remove a heavy-duty penknife from his pocket. |
| Let's worry more about making sure that when the Problem of Evil appears in a first-grade classroom, it is armed with a penknife. |
