The kanji character 序 signifies "beginning," "preface," "order," or "sequence." It suggests the start of something, the arrangement of things, or the introduction to a topic. It often relates to the initial part of a story, a book, or an event, setting the stage for what follows. It can also imply a logical order or a systematic arrangement.

・On-yomi (音読み): ジョ (jo) ・Kun-yomi (訓読み): つい(で) (tsui(de)) - which means "by the way", "incidentally" or "in order" but it is less common.

⚫︎序文 Translation: Preface; Introduction ⚫︎序論 Translation: Introduction; Preliminary remarks ⚫︎順序 Translation: Order; Sequence; Procedure

The kanji 序 is a phono-semantic compound (形声文字). The phonetic component is 予 (yo), which suggests "I" or "to give," and the semantic component is 广 which is the shape of a house, a shelter, or a hall. The house shape hints at a place where things begin, where an introduction might take place. The combined meaning suggests introducing something or starting a discussion. The character's original meaning likely referred to the beginning or initial part of something, or the introduction to a situation. This then expanded to mean order or sequence.