This is the 12308th most frequent Korean word.
단수
"단수" means "singular" (grammar) or "interruption of water supply."
The word '단수' here refers to 'singular,' indicating that the subject or form is singular as opposed to plural.
이 문장은 단수 형태입니다.
This sentence is singular in form.
In this sentence, '단수' denotes 'singular,' suggesting the constraint to utilize a singular format.
단수로만 사용하세요.
Use it only in singular form.
Here, '단수' is used in the context of 'single failure' concerning the interruption in water supply.