ὁμόφων-ος · homophōn-os — LSJ
speaking the same language with
speaking the same language with, ἔθνεα οὐκ ὁ. σφίσι (= ἀλλήλοις) Hdt. 3.98, cf. Th. 4.3, X. Mem. 4.4.19.
II of the same sound, tone, in unison with, having the same name with
of the same sound or tone, in unison with, τισι A. Ag. 158 (lyr.). Adv. -νως having the same name with, τινι Str. 9.2.29.
2 on the same note, in unison, with one voice (accord)
in Music, on the same note, in unison, opp. σύμφωνος (in concord), Arist. Pr. 921a7, al., Nicom. Harm. 11.5, Ptol. Harm. 1.7. Adv. -νως with one voice (accord), Plu. Galb. 5, S.E. P. 3.239.
3 having the same sound
Gramm., having the same sound (e.g. of voc. and nom. πόλις), Hdn. Gr. 2.628.