Strong's #3430: moicheia (pronounced moy-khi'-ah)
 from 3431; adultery:--adultery.
Thayer's Greek Lexicon:
 ́ 
 
  moicheia 
 
 1) adultery
 
  Part of Speech: noun feminine
Relation: from G3431
  Citing in TDNT: 4:729, 605
 
Usage:
This word is used 4 times:
Matthew 15:19: "evil thoughts, murders,  adulteries, fornications, thefts, false witness, blasphemies:"
Mark 7:21: "proceed evil thoughts,  adulteries, fornications, murders,"
John 8:3: "a woman taken in  adultery; and when they had set her in"
Galatians 5:19: "manifest, which are  these; adultery, fornication, uncleanness, lasciviousness,"