wéi yī
seul; unique; unique
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这是我唯一的选择。
Zhè shì wǒ wéiyī de xuǎnzé.
This is my only choice.
他是我唯一的朋友。
Tā shì wǒ wéiyī de péngyou.
He is my only friend.
这是我唯一能做的事。
Zhè shì wǒ wéiyī néng zuò de shì.
This is the only thing I can do.
独一无二 (dúyīwúèr)
one and only
绝无仅有 (juéwújǐnyǒu)
the only one of its kind
多个 (duō gè)
multiple
不止一个 (bù zhǐ yī gè)
more than one
The Chinese word 唯一 (wéiyī) means "only" or "the only one". It is composed of two characters: 唯 (wéi) and 一 (yī). The character 唯 means "only" or "alone", and the character 一 means "one". Together, they form the compound word 唯一, which means "the only one" or "the one and only".The character 唯 is derived from the Old Chinese word *gʷi, which meant "to be alone" or "to be unique". The character 一 is derived from the Old Chinese word *ʔit, which meant "one".The word 唯一 is first attested in the Shang dynasty (c. 1600-1046 BC). It was used in the oracle bone inscriptions to refer to the one and only god of the Shang people. In later texts, it was used to refer to the one and only ruler of China, the one and only son of a family, or the one and only thing of its kind.Today, the word 唯一 is still used in Chinese to mean "only" or "the only one". It is a common word that is used in both spoken and written Chinese.