n.[C]

1. 干草堆，稻草堆，麦秆堆
   The grain has gone mouldy in the stack.

   垛里的谷子发霉了。

2. （整齐的）一堆，一叠[S][（+of）]
   He placed his books in a neat stack.

   他把书整整齐齐放成一堆。

3. 【口】大量，许多[P1][（+of）]
   He's got stacks of money.

   他有许多钱。

4. （双面）大书架；书库[P1]
5. （三支步枪架成的）三角枪架
6. 烟囱；一排烟囱；排气管
   We could see several smoking stacks in the distance.

   我们可以看到远处好几个冒着烟的烟囱。

7. （作定高分层盘旋的）待降机群

vt.

1. 把……叠成堆[（+up）]
   Mother is stacking the plates in the kitchen.

   母亲在厨房里把盘子一个个叠起来。

2. 堆放[H][（+with）]
   The room was stacked with old books and magazines.

   房间里堆满了旧书和旧杂志。

3. 把……支成三角枪架
4. 指令（待降飞机）作定高分层盘旋[（+up）]
5. 对……作弊[（+against）]
   The memberships of this committee are stacked to give the majority party substantial control.

   有人在这个委员会的组成上搞了鬼，以使多数党取得相当多的控制权。

vi.

1. 形成堆
   These plates stack well.

   这些盘子叠得很平整。

2. （待降飞机）作定高分层盘旋
3. 【美】【口】比较[（+up against）]
   How does their product stack up against those imported from foreign countries?

   他们的产品与从外国进口的产品相比如何？

n.

1. a pile, especially a neat one.
   ▸a rectangular or cylindrical pile of hay, straw, etc.
   ▸a vertical arrangement of hi-fi or guitar amplification equipment.
   ▸a pyramidal group of rifles.
2. informal a large quantity of something.
3. a chimney or vertical exhaust pipe.
4. a number of aircraft flying in circles at different altitudes around the same point while waiting to land at an airport.
5. (also sea stack) Brit. a column of rock standing in the sea.
6. (the stacks) units of shelving in part of a library normally closed to the public.
7. Computing  a set of storage locations from which the most recently stored item is the first to be retrieved.
8. Brit. a measure for a pile of wood of 108 cu. ft (3.06 cubic metres).

v.

1. arrange in a stack.
   ▸fill or cover with stacks of things.
2. shuffle or arrange (a pack of cards) dishonestly.
   ▸ (be stacked against/in favour of) (of a situation) be overwhelmingly likely to produce an unfavourable or favourable outcome for.
3. cause (an aircraft) to fly in a stack.
4. (stack up) N. Amer. informal measure up; compare.
5. (in snowboarding) fall over.