This is the 4156th most frequent Chinese word.
吵
Noisy; to quarrel.
The word '吵' here is used as a verb that means 'to argue' or 'to quarrel', often seen in the expression '吵架' where '架' complements '吵' to describe a verbal conflict.
那对夫妻在吵架。
That couple is arguing.
In this context, '吵' is used as an adjective meaning 'noisy', describing a loud environment that affects concentration.
这附近太吵，我无法集中注意力。
It is too noisy around here; I can't focus.
Here, '吵' acts as a verb meaning 'to make noise'. It implies asking someone to refrain from disruptive sounds that might disturb others.