Correct

头水

/ tóu shuǐ / 
Strokes

Example

As an Adjective

(of goods) top-quality; first-rate

1
Tóu
头
shuǐhuò
水货

first-rate/top-quality goods

As a Noun

first irrigation

2
Jiāotóu
浇头
shuǐ
水

be irrigated for the first time

As a Noun

(of clothes, etc) first washing

3
Zhè
这
jiàn
件
chènyī
衬衣
xǐtóu
洗头
shuǐ
水
jiù
就
suō
缩
le
了
hěnduō
很多
  
。

This shirt shrank badly in the first wash.

4
Xǐtóushuǐ
洗头水

be washed for the first time