n.

1. 事实，实情[C]
   He thought he had already solved the problem, but that was not the case.

   他以为他已经解决了这个问题，可是实际情况并非如此。

2. 事例，实例[C]
   Here is a case in point.

   这里有一个很好的例子。

3. 案件；诉讼[C]
   The case was tried last Wednesday.

   上星期三审判了该案件。

4. （诉讼或争执之一方所持的）事实和论点[S1][（+for/against）]
5. 【语】格（名词、代词的字形变化）[C][U]
6. 个案；病例，病症；患者[C]

n.[C]

1. 箱，盒；套，壳；容器
   His new TV came in a big packing case.

   他新购的电视机是装在一只大的包装箱内运来的。

2. 框，架

vt.

1. 把……装入箱（或容器）中[（+up）]
   I cased my books for shipping.

   我把我的书装箱待运。

2. 【俚】（盗窃前）事先察看（房屋等）

n.

1. an instance of a particular situation; an example of something occurring:
   a case of mistaken identity.
   ▸the situation affecting or relating to a particular person or thing:

   I'll make an exception in your case.
   ▸an incident under official investigation by the police.
2. an instance of a disease, injury, or problem.
   ▸a person or their particular problem as a subject of medical or welfare attention.
3. a legal action, especially one that is to be decided in a court of law.
   ▸a set of facts or arguments supporting one side in such a legal action.
   ▸a legal action that has been decided and may be cited as a precedent.
4. a set of facts or arguments supporting one side of a debate or controversy.
5. Grammar  any of the inflected forms of a noun, adjective, or pronoun that express the semantic relation of the word to other words in the sentence.
   ▸such a relation whether indicated by inflection or not.

n.

1. a container designed to hold or protect something.
   ▸the outer protective covering of a natural or manufactured object.
2. a suitcase.
3. a box containing twelve bottles of wine or other drink, sold as a unit.
4. Printing  a partitioned container for loose metal type.
   ▸each of the two forms, capital or minuscule, in which a letter of the alphabet may be written or printed.

v.

1. enclose within a case.
2. informal reconnoitre (a place) before carrying out a robbery.