Quick Definition
pagan, heathen, gentile; a Gentile, non-Jew
Strong's Definition
national ("ethnic"), i.e. (specially) a Gentile
Derivation: from G1484 (ἔθνος);
KJV Usage: heathen (man)
Thayer's Greek Lexicon
ἐθνικός, ἐθνικη, ἐθνικον (ethnos);
1. adapted to the genius or customs of a people, peculiar to a people, national: Polybius, Diodorus, others.
2. suited to the manners or language of foreigners, strange, foreign; so in the grammarians (cf. our 'gentile'].
3. in the N. T. savoring of the nature of pagans, alien to the worship of the true God, heathenish; substantively, ὁ ἐθνικός, the pagan, the Gentile: Mat_18:17; plural, Mat_5:47 G L T Tr WH; ; and 3Jn_1:7 L T Tr WH.
Mounce Concise Greek Dictionary
ἐθνικός ethnikos 4x
national; in NT Gentile, heathen, not Israelites, Mat_5:47 ; Mat_6:7 ; Mat_18:17 ; 3Jn_1:7
Abbott-Smith Greek Lexicon
**† ἐθνικός , -ή , -όν
( < έθνος ),
[in Al. : Lev_21:7 * ;]
1. national ( Polyb .).
2. foreign (gramm.); in NT, as subst ., ὁ ἐ ., the Gentile (the adj. "describes character rather than mere position"; cf. ἔθνος , and v. Cremer , 228): Mat_5:47 ; Mat_6:7 ; Mat_18:17 , 3Jn_1:7 .†
Moulton & Milligan — Vocabulary of the Greek NT
ἐθνικός [page 181]
In the late P Oxy I. 126 .13 (A.D. 572) ἐθνικός is used of a collector of taxes, a sense not found elsewhere. In MGr the adj. means national.
Liddell-Scott — Intermediate Greek Lexicon
ἐθνικός ἐθνικός, ή, όν [Etym: ἔθνος] "foreign, heathen, gentile", NTest. : adv. -νικῶς, id=NTest.
STEPBible — Tyndale Abridged Greek Lexicon
ἐθνικός, -ή, -όν, [in Al.: Lev.21:7 * ;]
__1. national (Polyb.).
__2. foreign (gramm.); in NT, as subst., ὁ ἐ., the Gentile (the adj. "describes character rather than mere position"; cf. ἔθνος, and see Cremer, 228): Mat.5:47 6:7 18:17, 3Jo.7.
† (AS)