cognitive state, state of mind - the state of a person's cognitive processes

desire to know, lust for learning, thirst for knowledge - curiosity that motivates investigation and study

interest, involvement - a sense of concern with and curiosity about someone or something; "an interest in music"

curiousness, inquisitiveness - a state of active curiosity

object, physical object - a tangible and visible entity; an entity that can cast a shadow; "it was full of rackets, balls and other objects"

bric-a-brac, knickknackery, nicknack, whatnot, knickknack - miscellaneous curios

collectable, collectible - things considered to be worth collecting (not necessarily valuable or antique)

collector's item, piece de resistance, showpiece - the outstanding item (the prize piece or main exhibit) in a collection