Strong's:φθόγγος utterance, i.e. a musical note (vocal or instrumental)Derivation: from G5350;KJV Usage: sound. G5350
TBESG:φθόγγοςsoundG:N-M φθόγγος, -ου, ὁ (< φθέγγομαι), [in LXX: Psa.19:4 (קַו), Wis.19:18 * ;] a sound: Rom.10:18 (LXX) 1Co.14:7.† (AS)
φθόγγος phthoggos fthong'-gos From G5350; utterance, that is, a musical note (vocal or instrumental)KJV Usage: sound.
φθέγγομαι phtheggomai ftheng'-gom-ahee Probably akin to G5338 and thus to G5346; to utter a clear sound, that is, (genitive case) to proclaimKJV Usage: speak.
ἀποφθέγγομαι apophtheggomai ap-of-theng'-om-ahee From G575 and G5350; to enunciate plainly, that is, declareKJV Usage: say, speak forth, utterance.
φέγγος pheggos feng'-gos Probably akin to the base of G5457 (compare G5350); brilliancyKJV Usage: light.