dialect: applies commonly to a language found regionally OR among the uneducated: the ~ of Cajuns in Louisiana. (Cajuns:卡津人，法国后裔)


vernacular: applies to the everyday speech of the people in contrast to that of the learned: the doctor used the ~ indescribing the disease.


lingo: is a mildly contemptuous term for any language or form of language not readily understood: foreign tourists speaking some strange ~.


patois: designates the speech used in a bilingual section or country, esp. the mixed English and French spoken in some parts of Canada: children chattering happily in the local ~.


jargon: applies to a technical or esoteric language used by a profession, trade, or cult: educationese is the ~ of educational theorists.


cant: is applied derogatorily to language that is both peculiar to agroup or class AND marked by hackneyed or unclear expression: the ~ of TV sportscaster.


argot: is applied to a peculiar, often almost secret, language of a clique or other closely knit group: the ~ of narcotics smugglers.


slang: designates a class of mostly recently coined and frequently short-lived terms of usages informally preferred to standard language as being forceful, novel, or voguish: the ever changing ~ of college students.


Dialect方言:区域性语言或教育程度不高的语言，vernacular: 日常用语而非学术用语， lingo: 稍显轻蔑，任何难懂的语言或说话方式，patois: 双语区语言，特别是英法混用， jargon术语: 特定职业或团体的专业性强、难懂的语言，cant黑话: 贬义, 即特定人的难懂的话，argot行话: 某一行业或小团体的几乎秘密的语言，slang俚语: 通常指新造的、流行时间短的、非正式用语，有力新奇时髦的语言(如grass草指代毒品)。


记忆方法：1) DVLP JC AS: 发展地精彩==>方言诙谐滑稽，语言更精彩。


         2）方言的意思是非标准的语言形式mean a form of language that is not recognized as standard.