Lexical Definition

‎συνέδριον‎ synédrion (soon-ed'-ree-on) council G:N-N
neuter of a presumed derivative of a compound of ‎σύν‎ and the base of ‎ἑδραῖος‎

council.

Usage: 6 forms in 33 verses
Form Translated As     In Verse(s)
συνεδρίῳ Council Acts.5.27Acts.5.34Acts.6.15Acts.23.1Acts.23.6Acts.23.15
Sanhedrin Matt.5.22
συνεδρίω a sanhedrin LXX.Prov.20.19
of a sanhedrin LXX.Prov.27.22
sanhedrin LXX.Prov.11.13LXX.Prov.22.10LXX.Prov.26.26LXX.Prov.31.23
their sanhedrin LXX.Jer.15.17
συνεδρίου Council Acts.4.15Acts.5.41Acts.24.20
sanhedrin LXX.Ps.26.4LXX.Prov.22.10
συνεδρίοισ sanhedrins LXX.Prov.24.7
συνέδριον Council Matt.26.59Mark.14.55Mark.15.1Luke.22.66Acts.5.21Acts.6.12Acts.22.30Acts.23.20Acts.23.28
a council John.11.47
συνέδρια courts Matt.10.17Mark.13.9
sanhedrins LXX.Prov.15.22

Abbott-Smith

συνέδριον, -ου, τό (< σύν + ἕδρα, a seat) [in LXX: Pr 11:13 15:22, Je 15:17 (סוֹד), Ps 25 (26):4* (מַת), Pr 22:10 (דִּין) 26:26 (קָהָל); Pr 24:7 27:22 31:23, II Mac 14:5, IV Mac 17:17 * ;]
1. a council (Plat., Xen., al.; LXX; in π., σ. τ. πρεσβυτέρων, Deiss., BS, 156): of a local Jewish tribunal, Mt 10:17, Mk 13:9.
2. The supreme ecclesiastical court of the Jews, the Sanhedrin (i.e. Talmudic סַנְהֵדְרִין = συνέδριον): Mt 5:22 26:59, Mk 14:55 15:1, Lk 22:66, Ac 5:21, 27, 34, 41 6:12, 15 22:30 23:1, 6, 15, 20, 28 (WH, R, mg., om.) 24:20 of a meeting of the Sanhedrin, Jo 11:47; of the place of meeting, Ac 4:15.†

Abbott-Smith References

Book Refs
Psalms 26:4*
Proverbs 11:13 · 15:22 · 22:10 · 24:7 · 26:26 · 27:22 · 31:23
Jeremiah 15:17
Matthew 5:22 · 10:17 · 26:59
Mark 13:9 · 14:55 · 15:1
Luke 22:66
John 11:47
Acts 4:15 · 5:21 · 5:27 · 5:34 · 5:41 · 6:12 · 6:15 · 22:30 · 23:1 · 23:6 · 23:15 · 23:20 · 23:28 · 24:20

Liddell-Scott-Jones

συνέδριον-ιον, τό,

council, σ. κατασκευάζειν, συνάγειν, [Refs 5th c.BC+]; meeting, μεταπεμφθέντων εἰς κοινὸν σ. τῶν.. δεκανῶν [Refs 2nd c.BC+]; of a council of war, [Refs 5th c.BC+]; of the Areopagus, [Refs 4th c.BC+] together with the Areopagus, [Refs]; of a board of trade, [Refs 4th c.BC+]; of the Roman [Refs 2nd c.BC+]; the Jewish Sanhedrin, [NT+4th c.AD+]; τὸ σεμνότατον σ. τῆς γερουσίας, at Thasos, [Refs]; τὸ χωρίον ἐν σ. ἦν αὐτῷ τῶν πολιτῶν [Refs 2nd c.AD+]; frequently of a congress of Allies or Confederates, [Refs 5th c.BC+]; ἁμῶν (i.e. τῶν Ἀμφικτιόνων) [Refs 3rd c.BC+]; τὸ Ἑλληνικὸν σ. [Refs 1st c.AD+]

__2 place of meeting, council-chamber, [Refs 5th c.BC+]; ἐν σ. in court, [Refs 5th c.BC+]

LSJ Scripture Refs: Matt.5.22Mark.13.9