Strong's #1482: ethnikos (pronounced eth-nee-kos')

from 1484; national ("ethnic"), i.e. (specially) a Gentile:--heathen (man).

Thayer's Greek Lexicon:

̓́

ethnikos

1) adapted to the genius or customs of a people, peculiar to a people, national

2) suited to the manners or language of foreigners, strange, foreign

3) in the NT savouring of the nature of pagans, alien to the worship of the true God, heathenish

3a) of the pagan, the Gentile

Part of Speech: noun masculine

Relation: from G1484

Citing in TDNT: 2:372, 201

Usage:

This word is used 2 times:

 

Matthew 6:7: "use not vain repetitions, as the heathen do: for they think that"
Matthew 18:17: "let him be unto thee as a heathen man and a publican."