The Oxford Thesaurus An A-Z Dictionary of Synonyms - cantn.

1) hypocrisy, insincerity, sham, pretence, humbug, sanctimony, sanctimoniousness, lip-service, affectedness, pretension: He wasn't really enthusiastic - all that talk was just cant. 2) jargon, shop, shop-talk, argot, vernacular, slang, dialect, patois, Creole, pidgin, gobbledegook or gobbledygook, Colloq lingo: The criminals use a cant not understood by those outside their fraternity.