From Longman Dictionary of Contemporary Englishout of earshotout of earshotFARnot near enough to hear what someone is saying I waited for her to get out of earshot before laughing. → earshot
Examples from the Corpus
out of earshot• The social worker wanted to talk to the children out of earshot of their parents.• The river fell out of earshot.• As soon as the guards were out of earshot, Grimes explained his plans.• The only way we could communicate was between ourselves when our teachers were out of earshot. 