交 (jiāo) is a character that embodies the concept of intersection, exchange, and connection. Its original meaning is closely tied to this idea, and its structure provides a visual representation of this concept.

Here’s a breakdown of its evolution:

• Pictogram: The earliest forms of 交 depicted two lines crossing each other, forming an intersection or a point of connection. This simple image symbolized the act of things coming together, meeting, or exchanging.

This visual representation of intersection has led to several related meanings:

• To intersect: This is a core meaning, referring to lines or paths crossing each other.
• To exchange: This implies a reciprocal giving and receiving, like exchanging gifts or ideas.
• To connect: This suggests a link or association between things, such as people, places, or concepts.
• To hand over: This refers to transferring something to someone else.
• To make friends: This meaning highlights the social connection and interaction between people.
• Traffic: This modern usage likely arose from the intersection of roads and the flow of vehicles.

The character 交 is used in various contexts to express these meanings:

• 交叉 (jiāochā): To intersect, to crisscross
• 交流 (jiāoliú): To exchange, to communicate
• 交通 (jiāotōng): Traffic, transportation
• 交朋友 (jiāo péngyou): To make friends

The evolution of 交 from a simple pictogram of intersecting lines to a character representing various aspects of exchange, connection, and even traffic demonstrates the versatility of the Chinese writing system. Its structure reminds us of the fundamental human experience of interacting with others, exchanging ideas and resources, and forming connections that shape our lives and communities.