勾, cognate with 句, serves as a phonetic component to form characters.
In modern Chinese, 勾 means:
1.to mark; to put a check; to mark on
2.to cancel; to cross out or off
3.to hook
4.to join; to connect
5.to evoke
6.to entice; to seduce
7.a hook
Characters composed of the phonetic component 勾
购 gòu, 构 gòu, 沟 gōu, 钩 gōu, 芶 gōu/gǒu, 抅 jū
See also 句
Common words of 勾
勾搭, 勾兑, 勾缝, 勾勾搭搭, 勾股定理, 勾画, 勾绘, 勾魂, 勾结, 勾践, 勾栏, 勾阑, 勾勒, 勾连, 勾脸, 勾脸儿, 勾留, 勾描, 勾芡, 勾取, 勾惹, 勾通, 勾销, 勾心斗角, 勾引