allusion(n = noun.communication) - passing reference or indirect mention;
is a kind of mention, reference
Derived form verb allude1
1. A figurative or symbolical reference. [1913 Webster]
2. A reference to something supposed to be known, but not explicitly mentioned; a covert indication; indirect reference; a hint. [1913 Webster]
allusion, n. (often foll. by to) a reference, esp. a covert, passing, or indirect one.
Usage:
Often confused with illusion.
Etymology:
F allusion or LL allusio (as ALLUDE)
N meaning, signification, significance, sense, expression, import, purport, force, drift, tenor, spirit, bearing, coloring, scope, substance, gist, essence, marrow, spirit, matter, subject, subject matter, argument, text, sum and substance, general meaning, broad meaning, substantial meaning, colloquial meaning, literal meaning, plain meaning, simple meaning, natural meaning, unstrained meaning, true meaning, honest meaning, &c 543 prima facie meaning, letter of the law, literally, after acceptation, synonym, implication, allusion, suggestion, figure of speech, acceptation, meaning, expressive, suggestive, allusive, significant, significative, significatory, pithy, full of meaning, pregnant with meaning, declaratory, intelligible, literal, synonymous, tantamount, implied, explicit, to that effect, that is to say.
N metaphor, figure of speech, facon de parler, way of speaking, colloquialism, phrase, figure, trope, metaphor, enallage, catachresis, metonymy, synecdoche, autonomasia, irony, figurativeness, image, imagery, metalepsis, type, anagoge, simile, personification, prosopopoeia, allegory, apologue, parable, fable, allusion, adumbration, application, exaggeration, hyperbole, association, association of ideas (analogy), metaphorical, figurative, catachrestical, typical, tralatitious, parabolic, allegorical, allusive, anagogical, ironical, colloquial, tropical, so to speak, so to say, so to express oneself, as it were, mutato nomine de te fabula narratur.
N 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.