a.

1. 末端的，尽头的[Z][B]
   There's a Chinese restaurant at the extreme end of the street.

   在这条街的尽头有一家中国餐馆。

2. 极端的，极度的；最大的[Z][B]
   Your invitation gave him extreme joy.

   你的邀请使他高兴极了。

   They took extreme measures to conserve fuel.

   他们采取极端的手段节约燃料。

3. 急进的；激烈的；狂热的；偏激的
   Extreme conservatives were purged from the political organization.

   极端保守分子被清洗出那个政治组织。

n.[C]

1. 极端，末端
   We should avoid extremes.

   我们应该避免走极端。

2. 极端的事物；极端的行为（或手段）[P]
3. 极度；最大程度
   In dealing with the problem he was cautious to an extreme.

   他在处理这个问题时谨慎得过分了。

adj.

1. very great.
   ▸not usual; exceptional.
   ▸very severe or serious.
   ▸denoting or relating to a sport performed in a hazardous environment.
2. far from moderate, especially politically.
3. furthest from the centre or a given point.

n.

1. either of two things that are as different from each other as possible.
   ▸the most extreme degree:

   extremes of temperature.
2. Logic  the subject or predicate in a proposition, or the major or minor term in a syllogism.