This is the 3570th most frequent Chinese word.
湿
Wet.
湿 is used as an adjective describing the condition of the clothes being wet.
请把湿衣服换掉，以免着凉。
Please change the wet clothes to avoid catching a cold.
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.