understanding

agreement, contract, treaty, convention, bargain, understanding, accord

这些名词均含“协定，协议，契约，合同”之意。
agreement: 普通用词，含义最确定，泛指个人、团体或国家之间取得一致而达成的任何协议、协定或合同、契约等，可以是口头的，也可以是书面的。
contract: 侧重指双方或多方订立的具有法律效力的正式的书面合同或契约。
treaty: 指国家之间经外交谈判后依照国际法签订的正式条约。
convention: 比treaty更专门化，但不及treaty正式。也可指国家之间就有关事情签订的条约。
bargain: 通常指商业交往中的购销合同。
understanding: 指不具约束力的非正式的协议。
accord: 多指国际间的非正式协议。

名词 understanding:

1. the cognitive condition of someone who understands
   同义词：apprehension, discernment, savvy
2. the statement (oral or written) of an exchange of promises
   同义词：agreement
3. an inclination to support or be loyal to or to agree with an opinion
   同义词：sympathy
4. the capacity for rational thought or inference or discrimination
   同义词：reason, intellect

动词 understand:

1. know and comprehend the nature or meaning of
   同义词：understand
2. perceive (an idea or situation) mentally
   同义词：understand, realize, realise, see
3. make sense of a language
   同义词：understand, read, interpret, translate
4. believe to be the case
   同义词：understand, infer
5. be understanding of
   同义词：sympathize, sympathise, empathize, empathise, understand

形容词 understanding:

1. characterized by understanding based on comprehension and discernment and empathy

1. She found great difficulties in understanding him.
   她觉得很难理解他。
2. We are trying to get a thorough understanding of the government's fiscal policy.
   我们正努力对政府的财政政策进行全面的了解。
3. A knowledge of economics is fundamental to any understanding of this problem.
   经济知识对于理解这个问题是至关重要的。
4. We should get a thorough understanding about the cultural diversity of the United States.
   我们应该对美国文化的多样性有一个全面的了解。
5. I have only a limited understanding of French.
   我只懂得一点法语。
6. There is an understanding between us that we will not sell to each other's customers.
   我们有个协议，不向对方的顾客出售货物。