truth

/truθ/
noun
  1. The quality or state of being true; facts or reality, as opposed to lies or falsehood.
    • She always tells the truth, even when it's hard.
    • The truth is that we don't have enough money to buy a new car.
    • Scientists search for the truth about how the universe began.
  2. A fact or belief that is accepted as true.
    • One universal truth is that change is a part of life.
    • The book explores the truths of human nature.
    • He shared a simple truth about the importance of kindness.