Quick Definition
συγκοινωνέω v. I have fellowship with
Strong's Definition
from 4862 and 2841; to share in company with, i.e. co-participate in
KJV Usage: communicate (have fellowship) with, be partaker of
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
συγ-κοινωνέω [T WH ovr (cf. σύν, 1. fin.)],-4; 1 aor. subj. 2 pers. plur. συγκοινωνήσητε, ptcp. nom. plur. masc. συγκοινωνήσαντες ; to become a partaker together with others, or lohave fellowship with a thing: with a dat. of the thing, Eph. v.11; Phil. iv. 14; Rev. xviii. 4. (witha gen. of the thing, Dem. p. 1299, 20; τινί τινος, Dio Cass. 37, 41; ΤΊ, 16.)
Mounce Concise Greek Dictionary
συγκοινωνέω synkoinōneō 3x
to be a joint partaker, participate with a person; in NT to mix one’s self up in a thing, to involve one’s self, be an accomplice in, Eph. 5:11; Rev. 18:4; to sympathize actively in, to relieve, Phil. 4:14*
Abbott-Smith Greek Lexicon
* συν-κοινωνέω (Rec. συγκ-), -ῶ, to have fellowship with or in (in cl., c. gen. rei, dat. pers.): c. dat. rei, Eph 5:11, Re 18:4; id. c. gen. pers., Phl 4:14.†
Liddell-Scott-Jones — Greek-English Lexicon
συγκοινωνέω (sugkoinōneō) — to share with. συγκοινων-έω, have a joint share of, τῆς δόξης ταύτης [Refs 4th c.BC+]; to be connected with, τῆς κνήμης [Refs 5th c.BC+]; σ. τινί τινος go shares with one in a thing, [Refs 2nd c.AD+]
2. in “NT” with dative, take part in, have fellowship with, ταῖς ἁμαρτίαις [NT]