> 
> [Galatians 5:19 Now](https://biblehub.com/galatians/5-19.htm) the works of the flesh are manifest, which are
>  these; Adultery, fornication, uncleanness, lasciviousness,
> 
> 
> 

What is the difference between adultery, fornication, uncleanness & lasciviousness in the verse above? I looked into the Greek from [this website](http://www.godrules.net/library/kjvstrongs/kjvstrongsgal5.htm) but could not understand well.
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The word ἀδελφός (adelphos) occurs well over 300 times in the NT for which BDAG has two basic meanings:

> 
> (1) **a male from the same womb as the reference person, *brother***,
>  eg, **Matt 1:2, 11, 4:18, 21, Gal 1:19**, etc. … Hence there is no
>  doubt that in Luke 21:16 that the plural "adelphoi" = brothers and
>  sisters …
> 
> 
> **(2) a person viewed as a brother in terms of a close affinity, *brother, fellow member, member, associate***
> 
> 
> (a) one who shares beliefs eg, matt 12:50, Mark 3:35 … 
> 
> 
> (b) a compatriot Lev 10:4, 15:3, 12, 17:15, Acts 2:29, 3:17 etc.
> 
> 
> (c) without reference to a common nationality or faith, neighbor 9or
>  an intimate friend), eg, Matt 5:22, 7:3, etc.
> 
> 
> (d) Form of addressused by a king to persons in very high position -
>  (used in classical, non-Biblical literature)
> 
> 
> 

I have only included the highlights from BDAG to provide the general idea. For more detail consult BDAG. However, it appears correct that "adelphos" can, indeed, be used in the sense of fellow countryman or compatriot, or even close associate.
The definition is found in Greek Lexicon de Thayer: Thayer’s Greek Lexicon Strong’s NT 80: ἀδελφός ἀδελφός, (οῦ, ὁ (from ἆ copulative and δελφύς, **from the same womb**), however, the word was used for the father Jacob in Genesis 37:3-4 with four different wives (septuagint). There was an advance of meaning of the word for Jacob. All these were brother cousins (adelphos) by the same father.