Abstruse, Asylum, Incommunicado, Lair, Latent, Lodge, Lurking, Mail, Mantle, Mantled, Mask, Masked, Mew, Muffled, Mysterious, Mystic, Niche, Nook, Obfuscated, Obscure, Obscured, Occult, Packaged, Pall, Paved, Plumage, Port, Possible, Potential, Privately, Privy, Quiet, Recess, Recondite, Refuge, Retreat, Run, Sanctuary, Screen, Screened, Secluded, Secret, Sequestered, Sheathed, Shelled, Shelter, Shield, Shielded, Shifty, Shroud, Shrouded, Skulking, Sleeping, Slinking, Slinky, Sly, Sneaking, Sneaky, Speculum, Stealthily, Stealthy, Submerged, Surreptitious, Surreptitiously, Swathed, Tented, Thicket, Thickset, Trench, Tunnel, Undercover, Underground, Underhand, Underlying, Unknown, Unobtrusive, Veil, Veiled, Vestment, Virtual, Walled, Wrapped, Backstairs, Blanket, Blind, Brake, Bunker, Buried, Burrow, Cache, Camouflaged, Cased, Cave, Clandestine, Cloak, Cloaked, Close, Clouded, Coat, Coated, Concealed, Concealment, Coped, Coppice, Copse, Corner, Couch, Cover, Coverage, Covered, Covering, Cowl, Cowled, Cowling, Cranny, Cryptic, Curtain, Curtained, Den, Disguised, Dormant, Drape, Drapery, Dugout, Earth, Eclipsed, Encapsulated, Encased, Enveloped, Esoteric, Feather, Feathers, Feline, Filmed, Floored, Form, Foxhole, Furtive, Furtively, Guarded, Guise, Hackle, Hanging, Haven, Hibernating, Hid, Hidden, Hideaway, Hideout, Hiding, Hole, Hood, Hooded, Housed, Housing