Example: At last he knew the truth.
The truth is that he didn't want to do it.
source: wordnet30
conformity to reality or actuality(noun.state)
Example: They debated the truth of the proposition.
The situation brought home to us the blunt truth of the military threat.
He was famous for the truth of his portraits.
United States abolitionist and feminist who was freed from slavery and became a leading advocate of the abolition of slavery and for the rights of women (1797-1883)(noun.person)