The word 小事 is formed by directly combining two meaningful characters: 小 (xiǎo), meaning "small", and 事 (shì), meaning "matter", "affair", or "event". Conceptually, it is a straightforward and intuitive assembly where the first character acts as a simple, descriptive modifier for the second, scaling down its scope and importance. The resulting compound visually and logically presents the idea of a "small matter", creating a single, unified concept for something trivial or minor without the need for additional grammatical elements to link the two ideas.