社 (shè): Originally referring to an altar to the earth god, it came to mean a community or society organized around it. Think “social.”
会 (huì): Depicts a meeting or gathering under a roof. It means to meet, to assemble, or an association.
主 (zhǔ): A pictogram of a lamp with a flame, representing the central light. It means “main,” “master,” or “primary.”
义 (yì): Meaning, idea, or justice. When combined with 主 (zhǔ), it forms the suffix 主义 (zhǔyì), which means “-ism.”
The characters combine logically: 社会 (shèhuì) means “society,” and 主义 (zhǔyì) is the suffix for ideologies like an “-ism.” Therefore, 社会主义 literally translates to “society-ism,” or socialism.