名詞 smirch:

1. a blemish made by dirt
   同義詞：smudge, spot, blot, daub, smear, slur
2. an act that brings discredit to the person who does it
   同義詞：blot, smear, spot, stain

動詞 smirch:

1. smear so as to make dirty or stained
   同義詞：besmirch
2. charge falsely or with malicious intent; attack the good name and reputation of someone
   同義詞：defame, slander, asperse, denigrate, calumniate, smear, sully, besmirch