The Collaborative International Dictionary of English v.0.48:
Earshot \Ear"shot`\, n. Reach of the ear; distance at which words may be heard. --Dryden. [1913 Webster]WordNet (r) 3.0 (2006):
earshot n 1: the range within which a voice can be heard; "the children were told to stay within earshot" [syn: earshot, earreach, hearing]