The definition of a store is a place where something is sold.(noun)
An example of a store is a supermarket.
Store is defined as to put away or to stock.(verb)
See store in Webster's New World College Dictionary
Origin: ME storen < OFr estorer, to erect, furnish, store < L instaurare, to repair, restore, erect < in-, in- + -staurare < IE base *stā-, to stand
Origin: ME < OFr estor < the v.
See store in American Heritage Dictionary 4
Origin: Middle English stor, supply
Origin: , from Old French estor
Origin: , from estorer, to build
Origin: , from Latin īnstaurāre, to restore; see stā- in Indo-European roots.
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