Definition of "Inventory" :
noun: making an itemized list of merchandise or supplies on hand
"An inventory may be necessary to see if anything is missing."
noun: the merchandise that a shop has on hand
"They carried a vast inventory of hardware."
noun: a collection of resources
noun: a detailed list of all the items in stock
noun: (accounting) the value of a firm's current assets including raw materials and work in progress and finished goods
verb: make or include in an itemized record or report
"Inventory all books before the end of the year."