Family terms for strangers

Chinese kinship terms are far more specific than English — separate words distinguish paternal from maternal grandparents (爷爷/奶奶 vs 外公/外婆), older from younger siblings (哥哥/姐姐 vs 弟弟/妹妹), and each aunt or uncle by birth order and side of the family. Learning even a handful of these shows real effort and is noticed.

The pragmatic twist is that these same kinship terms are used constantly to address complete strangers, scaled to their apparent age relative to the speaker: 叔叔 (shūshu, 'uncle') for a man roughly a parent's age, 阿姨 (āyí, 'auntie') for a woman of similar age, 哥/姐 for someone a bit older than you, 爷爷/奶奶 for an elderly stranger. Children are explicitly taught to greet adults this way, and addressing an adult stranger with a bare 你 and no kinship term — especially from a child — can come across as blunt or poorly raised.

师傅 (shīfu, roughly 'master/skilled worker') is a separate, genuinely useful catch-all for drivers, repair workers, and tradespeople of any age or gender, without needing to judge their exact age bracket. Getting the generational term slightly wrong (calling someone 阿姨 who feels too young for it) can occasionally cause mild offense, so lean on your honest read of someone's age rather than defaulting high or low.