a.

1. 笔直的；挺直的
   His friend is a tall, slim girl with a straight nose.

   他的朋友是位鼻子挺直，身材高而苗条的姑娘。

2. 平直的；平的
3. 整齐的；端正的；有条理的[F]
4. 正直的，坦率的[（+with）]
   The boss is not completely straight with us.

   上司对我们并不十分坦诚。

5. 正确的；可靠的
6. 纯粹的，不搀杂的[Z]
7. 连续的，无间断的[B]
   It has snowed for three straight days.

   已连续下了三天雪了。

8. （戏剧）严肃的，正统的[Z][B]
9. 不表露感情的
10. 不欠债的[F]
11. 【俚】非同性恋的；非吸毒者的
12. 循规蹈矩的；极端古板守旧的

ad.

1. 直，挺直地
2. 直接地，一直地
   Go straight down the road and then turn left.

   沿着这条路一直走，然后左转。

3. 正直地，坦率地
   Tell me straight what you think of the plan.

   请坦率地告诉我你对这个计划的看法。

4. 立刻，马上
   He went to bed straight after supper.

   他吃好晚饭就去睡了。

5. 正确地

n.[C]

1. 直，挺直；直线[the S]
2. （纸牌）五张顺牌
3. （拳击）直拳，从正面击打
4. 【俚】非同性恋者；非吸毒者
5. 循规蹈矩的人；保守的人
6. 工厂制造的香烟，（烟）不含毒品的

adj.

1. extending uniformly in one direction only; without a curve or bend.
   ▸(of an arch) flat-topped.
2. properly positioned so as to be level, upright, or symmetrical.
   ▸in proper order or condition.
3. not evasive; honest.
   ▸(of a choice) simple.
   ▸(of thinking) clear and logical.
4. in continuous succession.
5. (of an alcoholic drink) undiluted.
6. (of drama) serious as opposed to comic or musical.
7. informal conventional or respectable.
8. informal heterosexual.

adv.

1. in a straight line; directly.
   ▸without delay; immediately.
2. in a straight manner.

n.

1. the straight part of something, especially the concluding stretch of a racecourse.
   ▸archaic a straight form or position.
2. Poker  a continuous sequence of five cards.
3. informal a conventional person.
4. informal a heterosexual.