Ancient Greek lemma · Strong’s G4858

συμφωνία

symphonia · /sim-fo-nee'-ah/ — “harmony”

concord; unison of sound; musical concord, accord; harmonious union of many voices; sounds, concert; of the music of the spheres; harmony, agreement; unanimily; concordance; amount agreed upon; band, orchestra…

Full entry

concord; unison of sound; musical concord, accord; harmonious union of many voices; sounds, concert; of the music of the spheres; harmony, agreement; unanimily; concordance; amount agreed upon; band, orchestra; symphonia; symphoniae et cymbala strepitusque

Derivation: from σύν (together) and φωνή (sound)