Including
Included, Furnished With, Attached To
suffix
You know that the kanji 付 means attach and words like 付く mean "to be attached." This has the same idea. When you see this attached to another word, for example, you might know that something is attached to something else, or perhaps included with it. For example, if you stay at a hotel room, maybe it is a breakfast付き, i.e. "including breakfast."
The reading comes from the reading of the kanji as well as from words like 付く and 付ける.
三食付き
three meals included
サンプル付き
sample included
おまけ付き
free gift included
このそうじきは、一年間のほしょうしょ付きですよ。
This vacuum cleaner comes with one year warranty.
一ぱく二食付きのりょかんをさがしています。
I'm looking for a Japanese style hotel that includes dinner and breakfast.
この部屋は冷蔵庫、洗濯機付きです。
This room is furnished with a refrigerator and a washing machine.