firework
US /ˈfaɪr.wɝːk/
UK /ˈfaɪr.wɝːk/

1.
花火
a device containing gunpowder and other combustible chemicals, which is ignited to produce a display of light, noise, and smoke
:
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The sky lit up with colorful fireworks.
空はカラフルな花火で照らされた。
•
They set off fireworks to celebrate the New Year.
彼らは新年を祝うために花火を打ち上げた。