AbstractEuphemismisacommonlinguisticphenomenoninglobalculture.Itplaysanimportantpartinourdailycommunication.AsanindispensableandnaturalpartofEnglishlanguage,Englisheuphemismhasarousedwideinterestamongmanylinguistsandscholarsfromdifferentperspectives.Euphemismisdeeplyrootedineveryaspectoflifeandisdevelopedwiththeadvancementofsociety.EnglisheuphemismisamirrorofWesterncultureandsocialpsychology.Ithasadistinctculturecolorfromthemomentitwasborn.Euphemismundoubtedlyreflectstheinnerrelationshipamongtheculturaltradition,socialvaluesandtheformoflanguage.Thisessayfirstbrieflyintroducesthecharacteristicsoftheeuphemism,namely,universality,indirectness,nationalismandregionalism.Thefunctionsofeuphemismonpoliticsandwararetodisguisetheserioussocialproblems,tocoverpoliticalscandals,todistortthefactsandtopresentafalsepictureofpeace.Thecommunicativefunctionsofeuphemismaretoavoidembarrassment,easethesituationorbehavepolitely..Keywords：euphemism;function;disguise;avoidance;religious;polite中文摘要委婉语是一种常见的全球语言现象。它是我们日常沟通的重要组成部分。作为英语不可或缺的的一部分，英语委婉已引起许多语言学家和学者的广泛关注。委婉扎根于社会生活的各个方面，并与社会发展同步。英语委婉语是西方文化与社会心理的反映。从它诞生时就有独特的文化色彩。委婉无疑反映了文化传统之间的内在关系，社会价值观念和语言形式。本文首先简要介绍了委婉的特点：普遍性，间接性，民族性和区域性。委婉语在政治和战争中使用是为了掩盖严重的社会问题、政治丑闻、歪曲事实、提出和平假象。委婉语在交谈中使用是为了避免尴尬，缓和局势和表现得得体。关键词：委婉；功能；掩饰；避讳；宗教；得体ChapterOneIntroduction1.Introduction:Euphemismisacommonlinguisticphenomenonintheglobalculture.Itplaysanimportantpartinourdailycommunication.AsanindispensableandnaturalpartofEnglishlanguage,Englisheuphemismhasarousedwideinterestamonglinguistsandscholarsfromdifferentperspectives.Euphemism,auniversallanguagephenomenon,hasspecialcommunicativefunctionsinsociallife.Agoodknowledgeofeuphemismwouldhelpimprovetheeffectofsocialcommunication.Theword“euphemism”comesfromGreek,“eu”meansgoodorwell,theroot“pheme“meansspeech,and-ismisanounsuffix,whichmeanstheresult,soitliterallymeansspeakingwellof…,goodspeechorwordsofgoodomen.1.1TheDefinitionofEuphemism:Euphemismhasbeendefineddifferentlyindifferentbooks.Therearesomede