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Greek-English Concordance for ἦχος
So the news (ēchos | ἦχος | nom sg masc) about him went out into every place in the surrounding region.
And suddenly from heaven there came a sound (ēchos | ἦχος | nom sg masc) like a violent blast of wind, and it filled the whole house where they were sitting.
to (ēchō | ἤχῳ | dat sg masc) the blast (ēchō | ἤχῳ | dat sg masc) of a trumpet and a sound of words which made those who heard it beg that no further message be given to them,