Passing acquaintance and Smattering

Smattering and passing acquaintance are semantically related In some cases you can replace term "Smattering" with "Passing acquaintance", this terms are similar.

Smattering noun - A small number.

Passing acquaintance and smattering are semantically related in modicum topic. You can use "Passing acquaintance" instead a noun "Smattering", if it concerns topics such as superficial knowledge.