penknife
Penknife (noun) means a small folding knife that fits easily in a pocket. Example: “He whittled the stick down with his penknife while waiting for the bus.”
How to use penknife
Learner’s notesIn plain EnglishA small pocket knife, historically used for trimming quill pens.
Word forms
- Plural
- penknives
- Third person singular
- penknifes
- Past tense
- penknifed
Fill the gap
Can you complete this real example?
He whittled the stick down with his _____ while waiting for the bus.
Etymology
From pen + knife — originally a small knife used to sharpen (cut a "nib" into) quill pens.