Webster's Revised Unabridged Dictionary · 1913

Reveal

Reveal , transitive verb

[French révéler, Latin revelare, revelatum, to unveil, reveal; pref. re- re- + velare to veil; from velum a veil. See Veil.]

1.
To make known (that which has been concealed or kept secret); to unveil; to disclose; to show.
Light was the wound, the prince's care unknown, She might not, would not, yet reveal her own. — Waller
2.
Specifically, to communicate (that which could not be known or discovered without divine or supernatural instruction or agency).

Reveal , noun

1.
A revealing; a disclosure. [Obsolete]
2.
(Architecture) The side of an opening for a window, doorway, or the like, between the door frame or window frame and the outer surface of the wall; or, where the opening is not filled with a door, etc., the whole thickness of the wall; the jamb.