harmony: implies a beautiful effect achieved by the agreeable interrelation, blending, or arrangement of parts in a complex whole: a resort in splendid ~ with its natural setting.      (如live in harmony with environment同自然环境和谐相处，如we live together in perfect harmony我们和睦地一同生活，social/racial harmony社会/种族和睦，如the Harmony OS鸿蒙操作系统；还表示和声，如to sing in harmony用和声唱，to study four-part harmony学习四部和声，口琴是harmonica)


consonance: implies the fact or means by which harmony is achieved throgh coincidence or concurrence: immediate ~ of action and custom.    （如musical/policy consonance音乐和谐/政策一致，如I found their work very much consonant with this way of thinking我发现他们的工作与这种思维方式非常一致，consonant还表示辅音，是停止吐气时发出的短促声音）  词根SON表示sound


accord: may imply personal agreement or goodwill or the absence of friction or ill will: parents and teachers are in ~ on this issue.   (如such an approach accords with the principles of socialist ideology这种方法与社会主义意识形态的原则相符（一致），如this military action, taken in accord with United Nations resolutions依据联合国决议而采取的军事行动)


concord: adds to accord implications of peace and amity: a planned utopian community in which all would live in ~.  amity来自词根AM=to love，这里表示友好友爱


harmony和谐: 指复杂事物的各部分被优美地关联混合布局，consonance和谐: 表示因为一致，accord一致: 表示思想上的一致，concord和谐: 比accord增加了和平友好的意思


记忆方法: 1）首字母HCAC想成HXA和谐阿(把2个C写成"背对背"恰好是X)<==和谐         "和"本义指"声音相应"，也就是声音和谐，最早是"龢"，秦汉时已简化成现在的写法。古字中，左边是"龠"，字形像一排竹管合拼而成的乐器，是笙和箫之类的吹奏乐器，右边的"禾"可能和材料或读音有关。声音调和、和谐，就显得悦耳动听，引申出"平和温和柔和"的意思，比如把结束战争称为"和平和好"，把关系融洽称为"和睦和气"，进而表示共同一起，如加法的结果成为"和"。       "谐"从言皆声，本义也是指"声音的协调"，"皆"表示"全,都"，言表示和声音语言有关，如和谐谐音诙谐。"协"和谐是一对，一个作动词一个作形容词。

         2）和谐的意思是共处时没有冲突mean the state resulting when different things come together without clashing or disagreement.