Definitions
1.VerbTo tilt one's face upwards slightly, thus raising one's nose, and often to look downwards at someone, as a sign of contempt, disgust, or scorn.
2.VerbFollowed by at."I tried to help, but they turned up their noses at my advice."
3.VerbTo refuse something offered, especially with contempt, disgust, or scorn, or with apparent disregard about offending the offerer."I tried to help, but they turned up their noses at my advice."
4.VerbTo regard or treat someone with contempt or scorn; to scorn; also, to disregard or ignore someone in a contemptuous or scornful way.