1. 把…楔住;把…楔牢
    If you wedge something, you force it to remain in a particular position by holding it there tightly or by fixing something next to it to prevent it from moving.

wedge

    e.g. I shut the shed door and wedged it with a log of wood...
           我关上小屋的门，并用一根木棍将门楔住。
    e.g. We slammed the gate after them, wedging it shut with planks.
           他们出去后，我们在后面砰地把大门关上，并用板条抵死。

2. 将…塞入;将…插入;将…挤入
    If you wedge something somewhere, you fit it there tightly.

    e.g. Wedge the plug into the hole...
           将塞子塞进洞口。
    e.g. The hotel's wedged right between the two airports.
           那家宾馆正好处于两个机场中间。

3. （用来固定门的）楔子，三角木
    A wedge is an object with one pointed edge and one thick edge, which you put under a door to keep it firmly in position.

4. (用于劈开木头等的金属)楔子
    A wedge is a piece of metal with a pointed edge which is used for splitting a material such as stone or wood, by being hammered into a crack in the material.

5. (水果、奶酪等)楔形物
    A wedge of something such as fruit or cheese is a piece of it that has a thick triangular shape.

6. 破坏…之间的关系;挑拨离间
    If someone drives a wedge between two people who are close, they cause ill feelings between them in order to weaken their relationship.

    e.g. I started to feel Toby was driving a wedge between us.
           我开始觉得托比在挑拨我们之间的关系。

7. （坏事的）端倪，冰山一角;可能引起更糟糕情况的小事
    If you say that something is the thin end of the wedge, you mean that it appears to be unimportant at the moment, but that it is the beginning of a bigger, more harmful development.

wedge的近义词

    e.g. I think it's the thin end of the wedge when you have armed police permanently on patrol round a city.
           我觉得让武装警察永久性地在城市里巡逻是老鼠拉木锨，大头在后边。