1 world

2 classifier: 个 gè

1 (numerical, statistical) index

2 (math.) exponent

3 index

4 exponential (function, growth)

1 contact surface

2 (computing) interface

1 World Cup

1 worldview

2 world outlook

3 Weltanschauung

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

1 pitch-dark (idiom)

1 to have no need to fend for oneself (idiom)

2 to lead a pampered life