This is the 3570th most frequent Chinese word.
湿
Wet.
湿 is used as an adjective describing the state of the ground being wet due to rain.
今天下了雨，所以地面很湿。
It rained today, so the ground is wet.
湿 is part of the compound 湿气, which refers to 'humidity' and describes the atmosphere's moisture level.
外面的湿气很重，让人感觉不舒服。
The humidity outside is high, making people feel uncomfortable.
湿 is used as an adjective describing the condition of the clothes being wet.