Lexical Definition

‎κοινωνία‎ koinōnía (koy-nohn-ee'-ah) participation G:N-F
from ‎κοινωνός‎

(to) communicate(-ation), communion, (contri-)distribution, fellowship.

Usage: 4 forms in 20 verses
Form Translated As     In Verse(s)
κοινωνίᾳ in fellowship Acts.2.42
partnership Phil.1.5
κοινωνίασ fellowship LXX.Lev.6.2
of fellowship Gal.2.9
of sharing Heb.13.16
participation 2Cor.9.13
κοινωνίαν a contribution Rom.15.26
fellowship 1Cor.1.92Cor.8.4Phil.3.101John.1.31John.1.61John.1.7
κοινωνία a participation 1Cor.10.161Cor.10.16
fellowship 2Cor.6.142Cor.13.13Phil.2.1Phlm.1.61John.1.3

Abbott-Smith

κοινωνία, -ας, ἡ (< κοινωνός), [in LXX: Le 6:2 (5:21) (יָד תְּשׂוּמֶת), Wi 8:18, III Mac 4:6*;]
1. fellowship, communion: Ac 2:42, II Co 6:14, Phl 1:5; τ. υἱοῦ, I Co 1:9; τ. αἵματος, σώματος Χρ., I Co 10:16; παθημάτων αὐτσῦ, Phl 3:10; τ. πνεύματος, II Co 13:13*, Phl 2:1; δεξιὰς κοινωνίας, Ga 2:9; τ. πίστεώς σου, Phm 6; seq. μετὰ: τ. πατρός, I Jo 1:3, 6; ἡμῶν, ἀλλήλων, ib. 3, 7.
2. contribution (as outcome of fellowship): Ro 15:26, II Co 8:4 9:13, He 13:6 (cf. Art. Communion, DB, i, 460 ff.; MM, Exp., xv).†

Abbott-Smith References

Book Refs
Leviticus 5:21 · 6:2
Acts 2:42
Romans 15:26
1 Corinthians 1:9 · 10:16
2 Corinthians 6:14 · 8:4 · 9:13 · 13:13*
Galatians 2:9
Philippians 1:5 · 2:1 · 3:10
Philemon 1:6
Hebrews 13:6
1 John 1:3 · 1:6 · 1:7

Liddell-Scott-Jones

κοινωνία-ία, ,

communion, association, partnership, κ. μαλθακά [Refs 5th c.BC+]; περὶ.. ἀνθρώπους πρὸς ἀλλήλους κ.[Refs]; ἀνθρωπίνη κ. human society, [Refs 4th c.BC+]; fellowship, [NT]; πρὸς τὸν Δία κ. [Refs 2nd c.AD+]

__b joint-ownership, [Refs 2nd c.AD+]
__2 with genitive objecti, λυγραὶ.. τῶν ὅπλων κ. [Refs 5th c.BC+]; ἡδονῆς τε καὶ λύπης κ. συνδεῖ[Refs 4th c.BC+]; βίου, of marriage, [NT+6th c.AD+]; τίς θαλάσσης βουκόλοις κ.; what have herdsmen to do with the sea? [Refs 5th c.BC+]; τίς δαὶ κατόπτρου καὶ ξίφους κ.; [κοινωνίαίαν ἔχει τινά 2nd c.AD: Alexander Rhetor 296 ">Refs 5th c.BC+]; opposed to κοινωνίαησία, [Refs 5th c.AD+]
__II sexual intercourse, [κοινωνίαίαν 4th c.BC: Amphis Comicus 20.3. ">Refs 5th c.BC+]
__III charitable contribution, alms, [NT]
__III.2 charitable disposition, opposed to πλεονεξία, [Refs]
__IV [Refs 4th c.BC+]

LSJ Scripture Refs: Acts.2.422Cor.13.14Rom.15.26Heb.13.16