What are three words that mean truth?

Answer 1

In certain contexts, three words that can mean truth are verity, surety, and purity.

Psalms 111:7 "The works of his hands are verity and judgment; all his commandments are sure."

Acts 12:11 "And when Peter was come to himself, he said, Now I know of a surety, that the Lord hath sent his angel, and hath delivered me..."

I Timothy 4:12 "Let no man despise thy youth; but be thou an example of the believers, in word, in conversation, in charity, in spirit, in faith, in purity."

Answer 2

Fact, reality, honest truth