(1):

(a.) Showy to excess; gaudy; specious; superficial.

(2):

(n.) A shining material used for ornamental purposes; especially, a very thin, gauzelike cloth with much gold or silver woven into it; also, very thin metal overlaid with a thin coating of gold or silver, brass foil, or the like.

(3):

(n.) Something shining and gaudy; something superficially shining and showy, or having a false luster, and more gay than valuable.

(4):

(v. t.) To adorn with tinsel; to deck out with cheap but showy ornaments; to make gaudy.