Other forms: firecrackers
A firecracker is a small firework that goes off with a bang. A string of firecrackers, let off a firecracker, firecrackers in the street.
It makes noise rather than light, which is the whole point of it. The word is also used of a lively person, especially in American speech.
1nounfirecrackerA small firework that goes off with a bang.
“Somebody let off a firecracker under the window at midnight.”
firecracker is a firework.
Fire plus cracker, from the cracking noise the charge makes.
From fire + cracker.
Etymology from Wiktionary, CC BY-SA