Quick Definition
μοιχός, οῦ, ὁ n.m. an adulterer
Strong's Definition
perhaps a primary word; a (male) paramour; figuratively, apostate
KJV Usage: adulterer
UBS Dictionary of the Greek New Testament
noun, m. | -οῦ | μοιχάομαι
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
μοιχός, -ov, 6, an adulierer: Lk. xviii. 11; 1 Co. vi. 9; Heb. xiii. 4. Hebraistically (see μοιχαλίς, b.) and fig. faithless toward God, ungodly: Jas. ἵν. 4 RG. (Soph., Arstph., Xen., Plut., sqq.; Sept.)
Mounce Concise Greek Dictionary
μοιχός moichos 3x
an adulterer, Lk. 18:11; 1 Cor. 6:9; Heb. 13:4*
Abbott-Smith Greek Lexicon
μοιχός, -οῦ, ὁ,
[in LXX for נאף;]
an adulterer: Lk 18:11, I Co 6:9, He 13:4.†
Moulton & Milligan — Vocabulary of the Greek NT
μοιχός, ordinarily ‘‘adulterer,’’ is apparently used of sodomy in the illiterate P Oxy VIII. 1160%* (iii/iv A.D.) ἔγραψές μοι δὲ ὅτι κάθῃ ἐν ᾿Αλεξανδρίαν (/—(a) μετὰ τοῦ μυχο[Ὁ] (1. porX0[0]) σου" γράψον μοι δὲ τίς ἐστιν ὁ μυχός (1. μοιχός) μου, **you wrote to me, ‘You are staying at Alexandria with your paramour.’ Write and tell me, who is my paramour” (Ed.).
Liddell-Scott-Jones — Greek-English Lexicon
μοιχός (moichos) — adulterer. μοιχός, ὁ, adulterer, paramour, [Refs 6th c.BC+]; κεκαρμένος μοιχὸν μιᾷ μαχαίρᾳ having the head close shaven with a razor, as was done by way of punishment to persons taken in adultery, [Refs 5th c.BC+]
II. generally, paramour, of a sodomite, [Refs 3rd c.AD+]
III. idolatrous person, [NT]