辛 (xīn) → 'sin/syd' onset,
尼 (ní) → '-nee' (the standard Chinese 'nee/ny' character — also closes
玛丽 → '-rie' family names like
肯尼迪 'Kennedy',
迪士尼 'Disney'). The Sydney, Australia city name uses
悉尼 (Xīní), so
辛尼 standalone usually points to a personal name.