SHUSH Meaning of SHUSH in English verb 1.Synonyms: silence , choke (off), hush, quiet, ||quieten, shut up, still 2.Synonyms: suppress 2, muffle, ||quelch, repress, squelch, strangle Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003