Two good friends of mine observe an "Web sabbath（安息日）"each 7 days, turning off their online connections from Friday evening to Monday morning user31968user31968 4133 bronze badges 16 2 "Grocery" while in the OP's case in point sentence functions as an adverb since it modifies the verb "store" in grocery store. https://michaelm431nyf5.blogripley.com/profile