Sin

“Sins” From Dictionary of Biblical Words:

The fruit of sin, the root. These are all forgiven tor Christ’s sake to those that believe in Him (1 John 2:1212I write unto you, little children, because your sins are forgiven you for his name's sake. (1 John 2:12)). All have sinned, and it is because of this, and not because they have sin that they are judged. I cannot change what I am, but I am responsible not to let my evil self act. No believer need sin. He cannot eradicate the root, but he may and ought to keep it in death that it may produce no fruit (sins), and never yield any of his members to sin (Rom. 6). For I ordinarily commit sin through the medium of my body.

Boyd’s Bible Dictionary:

Concise Bible Dictionary:

Strong’s Dictionary of Hebrew Words:

Number:
5512 (find all occurrences in KJV Bible)
Transliteration:
Ciyn
Phonic:
seen
Meaning:
of uncertain derivation; Sin the name of an Egyptian town and (probably) desert adjoining
KJV Usage:
Sin

Potts’ Bible Proper Names:

Clay; mud:―name of an Egyptian town and of a desert place, Ezek. 30:15. {Lutum}

From Anstey’s Doctrinal Definitions:

As a rule in the New Testament epistles, “sins” (plural) refer to the evil deeds that men do, and “sin” (singular) is the fallen nature in men (the flesh). Hence, “sins” are evil actions, whereas “sin” is the evil nature. The first is what we have done, and the second is what we are. Thus, “sins” are manifestations of “sin;” or “sins” are the product of “sin;” or “sins” are the fruit of a bad tree and “sin” is the root of that bad tree. “Sin” is more than just the old sin-nature; it is that evil nature with a will in it that is determined to gratify its lusts.
Another difference between these two things is that “sins” can be “forgiven” by the grace of God (Rom. 4:77Saying, Blessed are they whose iniquities are forgiven, and whose sins are covered. (Romans 4:7)), but “sin” is not forgiven, but rather, it is “condemned” under the righteous judgment of God (Rom. 8:33For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh: (Romans 8:3)). It is important to pay attention to this distinction when reading the epistles; if we don’t, we will come away with some mistaken ideas.