IPA: /ˈstɔːrər/
KK: /ˈstɔːrər/
A person or thing that stores something, often used to refer to a warehouse or a place where items are kept.
The storer carefully organized the boxes in the warehouse.
Storer is derived from the verb "store" (from Old French *estorer*, meaning to place or put away) and the suffix "-er" (meaning a person who). A storer is a person who places or puts away items for safekeeping.
Think of someone who 'places' things away for later use — that's what a storer does.