#1 rebuff v. [snub, repel] reject outright and bluntly; "She snubbed his proposal". wn
#2 rebuff n. [slight] a deliberate discourteous act (usually as an expression of anger or disapproval). wn
#3 rebuff v. [repel, repulse, fight off, drive back] force or drive back; "repel the attacker"; "fight off the onslaught"; "rebuff the attack". wn
#4 rebuff n. [snub, repulse] an instance of driving away or warding off. wn
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