1
general::
1. In readiness, in preparation for future use, as in I'm keeping several videos in store for your visit. Edmund Spenser used this idiom in The Faerie Queene (1590): "Then for her son . . . In her own hand the crown she kept in store." [1300s] 2. in store for. Forthcoming for, awaiting, as in There's trouble in store for you. [Mid-1600s]
American Heritage Idioms
2
general::
Phrase(s): *in store (for someone)
awaiting someone in the future. (*Typically: be ~; hold something ~; lie ~.) • None of us knows what lies in store for us tomorrow. • Some good lies in store for me, I think.
McGrawhill's American Idioms And Phrasal Verbs