We don't have synonyms for blackfaces yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are blackface, black ace and blockface.
(n) :
(uncountable) The practice in which a nonblack person blackens their face using theatrical makeup in order to portray a caricature of a black person.
(n) :
(uncountable, countable, typography) Synonym of boldface.
(n) :
(countable) A sheep of the Scottish Blackface breed.
(n) :
Alternative letter-case form of blackface. [(uncountable) The practice in which a nonblack person blackens their face using theatrical makeup in order to portray a caricature of a black person.]
(n) :
(uncountable) The practice in which a nonblack person blackens their face using theatrical makeup in order to portray a caricature of a black person.
(n) :
(uncountable, countable, typography) Synonym of boldface.
(n) :
(countable) A sheep of the Scottish Blackface breed.
(n) :
Alternative letter-case form of blackface. [(uncountable) The practice in which a nonblack person blackens their face using theatrical makeup in order to portray a caricature of a black person.]