SLANDERING
Scrabble letter values: S1L1A1N1D2E1R1I1N1G2 = 12
Definition
SLANDERING is the present participle of SLANDER.
verb SLANDER: charge falsely or with malicious intent.
Synonyms of SLANDER: defame, smirch, asperse, denigrate, calumniate, smear, sully, besmirch