Quick Definition
ποίμνιον, ου, τό n.n. a little flock
Strong's Definition
neuter of a presumed derivative of 4167; a flock, i.e. (figuratively) group (of believers)
KJV Usage: flock
UBS Dictionary of the Greek New Testament
noun, n. | -ου | ποιμαίνω
11.31 · Groups and Classes of Persons and Members of Such Groups and Classes · Socio-Religious
people who are like a flock (a figurative extension of meaning of ποίμνιον ‘flock,’ not occurring in the NT) the followers of Christ constituting a well-defined membership group It is often impossible to reproduce the figurative values of ἀρνίον[b] (11.29), πρόβατον[b] (11.30), ποίμνιον, and ποίμνη[b], , since such metaphors cannot be employed in areas of the world in which sheep serve primarily as scavengers around villages (something which is generally true in many parts of the tropics). It may be possible in some instances to preserve something of the metaphorical value of these four terms by translating in some such manner as ‘take care of my people as you would sheep’ or ‘take care of my people, who are like sheep,’ or ‘take care of my helpless people,’ but frequently one can only translate as ‘take care of my people.’
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ποίμνιον, -ov, τό, (contr. fr. ποιμένιον, i. q. ποίμνη, see ποιμήν ; [on the accent cf. W. 52; Chandler ὃ 343 b.]), a flock (esp.) of sheep: so of a group of Christ’s disciples, Lk. xii. 32; of bodies of Christians (churches) presided over by elders [ef. reff. s. v. ποιμήν, b.], Acts xx. 28,29; 1 Pet. v. 3; with a possessive gen. added, τοῦ θεοῦ, 1 Pet. v. 2, as in Jer. xiii. 17; rod Χριστοῦ, Clem. Rom. 1 Cor. 16, 1; 44,3; 54, 2; 57,2. (Hdt., Soph., Eur., Plat., Leian., al.; Sept. chiefly for 7], and }xx.)
Mounce Concise Greek Dictionary
ποίμνιον poimnion 5x
a flock; met. a flock of Christian disciples, Lk. 12:32; Acts 20:28, 29; 1 Pet. 5:2, 3*
Abbott-Smith Greek Lexicon
ποίμνιον, -ου, τό, = ποίμνη, q.v.,
[in LXX chiefly for עֹאן, also for עֵדֶר, etc.;]
a flock, prop., of sheep. Metaph., of Christians: Lk 12:32, Ac 20:28, 29, I Pe 5:3; τ. θεοῦ, I Pe 5:2.†
Moulton & Milligan — Vocabulary of the Greek NT
ποίμνιον, “a οοὶς ”’—the diminutive meaning, as in late Greek generally, cannot be pressed, cf. P Ryl II. 1142° (ες. A.D. 280), where a widow complains to the praefect that her husband’s former master had seized certain flocks belonging to the deceased, kal μέχρι τῆς σήμε[ρον οἰκειῶν τ]υγχάνι τὰ ἡμέτερα ποίμνια, “and until this day he remains in possession of our flocks” (Edd.). Cf. Aristeas 170 βουκολίων καὶ ποιμνίων, ‘herds and flocks.
Liddell-Scott-Jones — Greek-English Lexicon
ποίμνιον (poimnion) — flock. ποίμν-ιον, τό, ={ποίμνη}, especially of sheep, [Refs 5th c.BC+]; of goats, [Refs]: plural, head of cattle, π. τρισχίλια [LXX]
II. metaphorically of disciples, [NT]