Allusion

n.	1.	A figurative or symbolical reference.
	2.	A reference to something supposed to be known, but not explicitly mentioned; a covert indication; indirect reference; a hint.

Noun

1.

allusion - passing reference or indirect mention

allegory, arcane meaning, assumption, coloration, connotation, hint, implication, implied meaning, import, inference, innuendo, intimation, ironic suggestion, meaning, metaphorical sense, nuance, occult meaning, overtone, presumption, presupposition, subsense, subsidiary sense, suggestion, supposition, symbolism, tinge, touch, undercurrent, undermeaning, undertone