1 finger

2 to point at or to

3 to indicate or refer to

4 to depend on

5 to count on

6 (of hair) to stand on end

1 (numerical, statistical) index

2 (math.) exponent

3 index

4 exponential (function, growth)

1 fingernail

1 dog

2 classifier: 只 zhī

3 classifier: 条 tiáo

1 middle finger

1 a snap of the fingers (idiom); in a flash

2 in the twinkling of an eye

1 to know sth like the back of one's hand (idiom)

2 to know (a person, a place etc) inside out

1 (idiom) to pose

2 to put on airs

1 to make one's hair stand up in anger (idiom); to raise people's hackles

1 pitch-dark (idiom)