n. 烟火具, 烟火, 烟火信号弹, 焰火, 激情的表现

[ noun ]
(usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc.
<noun.artifact>

firework \fire"work`\ (f[imac]r"w[^u]rk`), n.
1. A device for producing a striking display of light, or a
figure or figures in plain or colored fire, by the
combustion of materials that burn in some peculiar manner,
as gunpowder, sulphur, metallic filings, and various
salts; also called a {pyrotechnic device}. The most common
feature of fireworks is a paper or pasteboard tube filled
with the combustible material. A number of these tubes or
cases are often combined so as to make, when kindled, a
great variety of figures in fire, often variously colored.
The skyrocket is a common form of firework. The art of
designing fireworks for purposes of entertainment is
called {pyrotechnics}. The name firework is also given to
various combustible preparations used in war.

2. pl. A pyrotechnic exhibition; an entertainment consisting
of the discharge of fireworks[1]. [Obs. in the sing.]
[1913 Webster +PJC]

Night before last, the Duke of Richmond gave a
firework. --Walpole.