序（xu）
Name meaning
序 (xu) means order, sequence, preface and arranged structure. In a given name it should suggest thoughtful order, steady progress and cultured introduction, not rigidity.
Practical naming use
Use 序 (Xu) for a name that should feel organized, thoughtful and cultivated. It suits writing, law, management, scholarship, architecture, operations or a person image of calm structure and step-by-step progress.
Pairing guide
Pair 序 (Xu) with culture, clarity or peace: 序文 (Xuwen), 序明 (Xuming), 序宁 (Xuning) or 序然 (Xuran). Avoid another rule-heavy character if the name becomes stiff.
序文 (Xuwen): Xu contributes order, sequence; Wen adds culture, writing.