How to Say "Mouthwash" in Mandarin

漱口水

shùkǒushuǐ

The English phrase mouthwash is 漱口水 (shùkǒushuǐ) in Mandarin.

漱口水 is a noun used to refer to the liquid used to clean one's mouth.

Meaning: liquid used to clean one's mouth (noun)

What does it mean word for word?

The word is composed of 漱 (to rinse), 口 (mouth) and 水 (water).

shùkǒushuǐ

The character 口 (kǒu) meaning 'mouth' is also used in many Mandarin words to denote a physical opening or an entrance, such as a door or a mountain pass.
In traditional Chinese medicine, rinsing the mouth with salt water is a common home remedy, often referred to using the same root verb 漱.
In some regional dialects, people might simply say 漱口 to refer to the liquid itself, treating the action and the object as the same thing.

這個漱口水的薄荷味太重了。
The peppermint flavor in this mouthwash is too strong.
Tatoeba #9049749 by xjjAstrus, translation #10251213 by bekindtoall
這個牌子的漱口水的味道好怪。
The flavors of this brand's mouthwash are weird.
Tatoeba #9049748 by xjjAstrus, translation #10251214 by bekindtoall
别忘记用漱口液，这样口气会更清新。
Don't forget to use mouthwash, it will freshen your breath.
超市那裡有賣漱口水嗎？
Chāoshì nàlǐ yǒu mài shùkǒushuǐ ma?
Does that supermarket sell mouthwash?
2 more sentences on Tatoeba

Haoran and Jiayi are in the bathroom getting ready.

浩然 Haoran

佳怡，你有漱口水嗎？
Jiāyí, nǐ yǒu shùkǒushuǐ ma?
Jiayi, do you have any mouthwash?
佳怡 Jiayi

有，在洗手槽旁邊。
Yǒu, zài xǐshǒu cáo pángbiān.
Yes, it's next to the sink.
浩然 Haoran

我找不到漱口水在哪裡。
Wǒ zhǎo bú dào shùkǒushuǐ zài nǎlǐ.
I can't find where the mouthwash is.
佳怡 Jiayi

就在那個藍色瓶子裡。
Jiù zài nàge lánsè píngzi lǐ.
It's right there in that blue bottle.

Sources

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