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Phrase(s): within a stone’s throw (of something) [and] (just) a stone’s throw away (from something); (just) a stone’s throw (from something)
Fig. very close (to something). (Possibly as close as the distance one could throw a stone. It usually refers to a distance much greater than one could throw a stone.) • The police department was located within a stone’s throw of our house. • We live in Carbondale, and that’s just a stone’s throw away from the Mississippi River. • Come visit. We live just a stone’s throw away.
McGrawhill's American Idioms And Phrasal Verbs