diǎn​tóu​zhī​jiāo

nodding acquaintance

Senses

点头之交/ 點頭之交 diǎn​tóu​zhī​jiāo nodding acquaintance

A casual acquaintance or someone known only well enough to exchange nods of greeting.

References

synonym 点头之交/點頭之交 泛泛之交/泛泛之交
synonym 口头交/口頭交 点头之交/點頭之交