xìn hào
signal
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我收到了一个信号。
wǒ shōu dào le yī ge xìn hào.
I received a signal.
信号灯坏了。
xìn hào dēng huài le.
The traffic light is broken.
请勿干扰无线电信号。
qǐng wù gǎnrǎo wú xiàn diàn xìn hào.
Please do not interfere with the radio signal.
噪声 (zào shēng)
noise
干扰 (gān rǎo)
interference
The Chinese word 信号 (xìn hào) for "signal" is composed of two characters: 信号 (xìn) and 号 (hào). The character 信号 (xìn) originally meant "to inform" or "to make known", and it is composed of the radical 言 (yán), which represents speech or language, and the character 心 (xīn), which represents the heart or mind. The character 号 (hào) originally meant "a sign" or "a symbol", and it is composed of the radical 口 (kǒu), which represents the mouth, and the character 告 (gào), which means "to announce" or "to inform". When combined, the two characters 信号 (xìn hào) form the word for "signal", which refers to a sign, gesture, or sound that is used to convey information or instructions.
