Hidden word meaning and definition

[adjective] covered from view; "her face buried (or hidden) in her hands"; "a secret buried deep within herself"
[adjective] difficult to find; "hidden valleys"; "a hidden cave"; "an obscure retreat"
[adjective] designed to elude detection; "a hidden room or place of concealment such as a priest hole"; "a secret passage"; "the secret compartment in the desk"
[adjective] not accessible to view; "concealed (or hidden) damage"; "in stormy weather the stars are out of sight"

\Hid"den\, p. p. & a. from {Hide}. Concealed; put out of view; secret; not known; mysterious. {Hidden fifths} or {octaves} (Mus.), consecutive fifths or octaves, not sounded, but suggested or implied in the parallel motion of two parts towards a fifth or an octave. Syn: {Hidden}, {Secret}, {Covert}. Usage: Hidden may denote either known to on one; as, a hidden disease; or intentionally concealed; as, a hidden purpose of revenge. Secret denotes that the thing is known only to the party or parties concerned; as, a secret conspiracy. Covert literally denotes what is not open or avowed; as, a covert plan; but is often applied to what we mean shall be understood, without openly expressing it; as, a covert allusion. Secret is opposed to known, and hidden to revealed. Bring to light the hidden things of darkness. --1 Cor. iv. 5. My heart, which by a secret harmony Still moves with thine, joined in connection sweet. --Milton. By what best way, Whether of open war, or covert guile, We now debate. --Milton.

Morse code: .... .. -.. -.. . -.