Lexical Definition

‎συγχαίρω‎ synchaírō (soong-khah'-ee-ro) to rejoice with G:V
from ‎σύν‎ and ‎χαίρω‎

rejoice in (with).

Usage: 6 forms in 8 verses
Form Translated As     In Verse(s)
συνέχαιρον they were rejoicing with Luke.1.58
συγχαρείταί will rejoice along with LXX.Gen.21.6
συγχαίρω I rejoice with Phil.2.17
συγχαίρετέ do rejoice with Phil.2.18
συγχαίρει rejoice with 1Cor.12.26
rejoices 1Cor.13.6
συγχάρητέ do rejoice with Luke.15.6Luke.15.9

Abbott-Smith

συν-χαίρω (Rec. συγ-), [in LXX: Ge 21:6 (צחק), III Mac 1:8 R * ;]
1. to rejoice with: c. dat pers., Lk 1:58 15:6, 9, Phl 2:17, 18, EV; c. dat. rei, I Co 12:26 13:6.
2. to congratulate (Æschin., Polyb., al.): Phl, l.c. (Lft., in l.; cf. MM, xxiv).†

Abbott-Smith References

Book Refs
Genesis 21:6
Luke 1:58 · 15:6 · 15:9
1 Corinthians 12:26 · 13:6
Philippians 2:17

Liddell-Scott-Jones

συγχαίρω,

aorist -εχάρην [] [Refs 2nd c.BC+], imperative -χάρηθι[Refs]:—rejoice with, [Refs 5th c.BC+]: later in middle, [Refs 2nd c.AD+]

__II wish one joy, congratulate, σ. τῶν γεγενημένων wish one joy of.. , [Refs 4th c.BC+]; σ. τῇ πόλει ὅτι.. [Refs 4th c.BC+]