The noun 词语 (cíyǔ) means "words" or "terms" and refers to vocabulary items or expressions in a language. It is broader than 词 alone and is commonly used in linguistic, educational, and editorial contexts when discussing language usage or dictionary entries.
这篇文章里有几个词语我不太懂。
Zhè piān wénzhāng lǐ yǒu jǐ gè cíyǔ wǒ bù tài dǒng.
There are a few words in this article that I don't quite understand.
老师让我们用这些词语造句。
Lǎoshī ràng wǒmen yòng zhèxiē cíyǔ zàojù.
The teacher asked us to make sentences using these words.
学习一门外语需要积累大量词语。
Xuéxí yī mén wàiyǔ xūyào jīlěi dàliàng cíyǔ.
Learning a foreign language requires accumulating a large number of words.