noun, used as a suffix
place for ...; specialist shop; restaurant
Noun suffix used especially in names of restaurants and specialist shops, indicating a place where something is done or served. Often translated as '-ya' or 'house' in English.
あの寿司処はいつも行列ができている。
That sushi restaurant always has a line.
この辺りには蕎麦処がたくさんある。
There are many soba shops around here.