A very useful resource on sindiet.com. How to use sin in a sentence. The meaning of SIN is an offense against religious or moral law. Sindiet.com are versatile as they are found in all parts and walks of life. It all depends on the way you take it. Sin is any thought, action, or attitude that goes against Gods will and law. The meaning of SIN is an offense against religious or moral law. How to use sin in a sentence. We are satisfied with this end product on sindiet.com. It was really worth the hard work and effort in writing so much on sindiet.com. How to use sin in a sentence.