"Overflow" is pronounced as "yì", which means that liquid or objects flow out or overflow from the inside of the container.
The word "overflow" refers to the character "overflow" in ancient Chinese calligraphy, which is caused by using too much ink or using too large strokes. Overflowing characters were considered a flaw in ancient calligraphy because they would destroy the beauty and regularity of the glyphs.
In modern Chinese, the word "overflow" can also be used to describe some inappropriate behavior or speech that exceeds appropriate boundaries, such as "premium", "overflow", etc.
In short, the word "overflow" is a relatively common word, with different usages and meanings in ancient calligraphy and modern Chinese.