Small: the original meaning refers to fine; Microscopic. Also refers to young, ranking last; You can also make modest remarks. Used as a name, it means small, cute and approachable.
"Shuo Wen Jie Zi" explains that things are very small. Divide it from eight or three opinions. All small families are very small.
Rain: rain, water falling from the clouds to the ground.
"Shuo Wen Jie Zi" explains the cloud: Water comes out from under the cloud. As the sky is like a cloud, water is idle. All rain belongs to rain.
The meaning of the name can be interpreted as: "a warm and crisp light rain." Idioms are small and exquisite.