The Japanese suffix '制 (せい)' is used to denote a system, rule, or regulation. It is often attached to nouns to form compound words that describe specific systems or frameworks. For example: the education system「教育制」(きょういくせい). The reservation system「予約制」(よやくせい). This suffix is commonly used in formal or technical contexts to describe organized structures or methods. It is important to note that '制 (せい)' is not used independently but always as part of a compound word.
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