truth or disclosure

Aletheia (Ancient Greek: ἀλήθεια) is truth or disclosure in philosophy. ... Aletheia is variously translated as "unclosedness", "unconcealedness", "disclosure" or "truth". The literal meaning of the word ἀ–λήθεια is "the state of not being hidden; the state of being evident." It also means factuality or reality.

Aletheia - Wikipedia