switchblade
Switchblade (noun) means a folding knife whose blade springs open automatically when a button is pressed. Example: “The switchblade was confiscated at airport security.”
How to use switchblade
Learner’s notesIn plain EnglishA knife with a blade that pops open at the press of a button.
Word forms
- Plural
- switchblades
- Third person singular
- switchblades
- Past tense
- switchbladed
Fill the gap
Can you complete this real example?
The _____ was confiscated at airport security.
Etymology
A compound of switch (in the sense of a quick mechanical action) and blade.