An instance of driving away or warding off
Rebuff
Repulse
Rejection
Refuse to acknowledge
Cut
Disregard
Ignore
Do by
Treat
Handle
Reject outright and bluntly
Repel
Turn down
Pooh-pooh
Disdain
Freeze off
Reject
Scorn
Spurn
She snubbed his proposal
A refusal to recognize someone you know
Cold shoulder
Slight
The snub was clearly intentional
Unusually short
Short
A snub nose