This is the 112th most frequent Chinese word.
住
"住" means "to live," "to reside," or "to stay."
In this sentence, "住" is used as a verb to express residing or living in a certain location.
我住在北京。
I live in Beijing.
In this context, "住" is combined with "停" to form "停住," signifying that an action (stopping) has ceased or ended.
车突然停住了。
The car suddenly came to a stop.
Here, "住" is part of the phrase "住嘴" which means to stop talking (literally to keep the mouth from moving). It functions metaphorically to denote cessation.