hide, conceal -- (prevent from being seen or discovered; "Muslim women hide their faces"; "hide the money")
hide, hide out -- (be or go into hiding; keep out of sight, as for protection and safety; "Probably his horse would be close to where he was hiding"; "She is hiding out in a cabin in Montana")
shroud, enshroud, hide, cover -- (cover as if with a shroud; "The origins of this civilization are shrouded in mystery")
obscure, blot out, obliterate, veil, hide -- (make undecipherable or imperceptible by obscuring or concealing; "a hidden message"; "a veiled threat")
Overview of adj hidden
The adj hidden has 3 senses
concealed, hidden, out of sight -- (not accessible to view; "concealed (or hidden) damage"; "in stormy weather the stars are out of sight")
hidden, secret -- (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")
hidden, obscure -- (difficult to find; "hidden valleys"; "a hidden cave"; "an obscure retreat")