From WordNet (r) 3.0 (2006):
slander
n 1: words falsely spoken that damage the reputation of another
2: an abusive attack on a person's character or good name [syn:
aspersion, calumny, slander, defamation,
denigration]
v 1: charge falsely or with malicious intent; attack the good
name and reputation of someone; "The journalists have
defamed me!" "The article in the paper sullied my
reputation" [syn: defame, slander, smirch, asperse,
denigrate, calumniate, smear, sully, besmirch]