anagoge, anagogics, anthroposophy, arcanum, cabalism, classified information, confidence, confidential communication, enigma, esoterica, esotericism, esoterics, esoterism, esotery, guarded secret, hermetics, hocus-pocus, mumbo jumbo, mystery, mystery of mysteries, mysticism, mystification, occultism, personal matter, private matter, privileged communication, privity, profound secret, restricted information, sealed book, secret, symbolics, symbolism, the occult, yoga, yogeeism, yogism
spell, charm, incantation, exorcism, weird, cabala
, exsufflation, cantrap, runes, abracadabra, open sesame, countercharm, Ephesian letters, bell book and candle, Mumbo Jumbo, evil eye, fee-faw- fum, talisman, amulet, periapt, telesm, phylactery, philter, fetich, fetish, agnus Dei, lamb of God, furcula, madstone, mascot, mascotte, merrythought, Om, Aum, scarab, scarabaeus, sudarium, triskelion, veronica, wishbone, swastika, fylfot, gammadion, wand, caduceus, rod, divining rod, lamp of Aladdin, wishing-cap, Fortunatus's cap.
latency, implication, latency, inexpression, hidden meaning, occult meaning, occultness, mystery, cabala
, anagoge, silence, concealment, more than meets the eye, more than meets the ear, Delphic oracle, le dessous des cartes, undercurrent, implication, logical implication, logical consequence, entailment, allusion, insinuation, innuendo, adumbration, something rotten in the state of Denmark, snake in the grass, secret, darkness, invisibility, imperceptibility, latent, lurking, secret, occult, implied, dormant, abeyant, unapparent, unknown, unseen, in the background, invisible, indiscoverable, dark, impenetrable, unspied, unsuspected, unsaid, unwritten, unpublished, unbreathed, untalked of, untold &c, unsung, unexposed, unproclaimed, undisclosed, unexpressed, not expressed, tacit, undeveloped, solved, unexplained, untraced, undiscovered, untracked, unexplored, uninvented, indirect, crooked, inferential, by inference, by implication, implicit, constructive, allusive, covert, muffled, steganographic, understood, underhand, underground, delitescent, concealed, by a side wind, sub silentio, in the background, behind the scenes, behind one's back, on the tip of one's tongue, secretly, between the lines, thereby hangs a tale, tacitum vivit sub pectore vulnus, where there's smoke, there's fire.