SNUB
WordNet
adjective
(1) Unusually short
"A snub nose"
noun
(2) A refusal to recognize someone you know
"The snub was clearly intentional"
(3) An instance of driving away or warding off
verb
(4) Reject outright and bluntly
"She snubbed his proposal"
(5) Refuse to acknowledge
"She cut him dead at the meeting"