noun
firecracker
FEYE-uh-kra-kuh
noun
1
A small paper-wrapped explosive that makes a loud bang, used for celebrations.
"Children set off firecrackers to celebrate the new year."
2
An exciting, energetic, or unpredictable person.
"She's a firecracker — full of energy and always ready with a comeback."
How to Use Firecracker
Learner’s notesIn plain EnglishA small noisy explosive, or informally, a lively and spirited person.
When to use it
The "energetic person" sense is informal.
Word Forms
firecrackers plural
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Children set off _____ to celebrate the new year.
Etymology
A compound of fire and cracker, describing the sharp cracking bang it produces.