slip/ slɪp /

1.vt.
to slip sth into/under sth (put) 将某物悄悄塞入某物/到某物下面

2.vi.[person+] 
(slide) 滑跤

3.vi.[object+] 
滑落

4.vi.
(decline) 下降

5.noun [c] 
(fall) 滑倒

6.noun
(mistake) 差错

7.noun [of paper] 
细条

8.noun
(underskirt) 衬裙

9.noun
(with top part) 连身衬裙

to slip sth on/off
 [+clothes,shoes] 迅速穿上/脱下某物
it slipped my mind
我忘了
to slip into/out of sth
 [+room,house] 悄悄溜进/出某处
to slip sth to sb, slip sb sth
偷偷将某物塞给某人
10.noun [+clothes] [ shoes] 
迅速穿上/脱下某物

to slip into a habit/routine
逐渐养成习惯/规律
to let slip that...
无意中透露…
a slip of the tongue
口误
to give sb the slip
 [inf] 甩掉某人